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Light E, Bridge P. Clinical indications for carbon-ion radiotherapy in the UK: A critical review. Radiography (Lond) 2024; 30:425-430. [PMID: 38199158 DOI: 10.1016/j.radi.2023.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/14/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
INTRODUCTION Carbon-ion radiotherapy (CIRT) has unique radiobiological properties that cause increased radiobiological effect and tumour control, especially with hypoxic tissues. This critical review aimed to evaluate clinical response to CIRT across all published tumour sites to establish if there is a clinical need for a CIRT centre in the UK. METHODS A critical review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Literature searching was undertaken in November 2022 within the PubMed, Science Direct, SCOPUS and Web of Science databases using the term 'carbon ion radiotherapy' in the title, abstract or author keywords. RESULTS After critical appraisal, data was extracted from 78 primary study papers. Strong evidence supported use of CIRT for chondrosarcoma, chordoma, nasopharyngeal, non-small cell lung cancer (NSCLC), oral cavity, prostate, rectal and salivary gland tumours. Further research is needed to strengthen the evidence base for some other tumour types. CONCLUSION The UK's incidence and mortality rates suggest a clinical need for CIRT for chondrosarcoma, chordoma, NSCLC, oral cavity, prostate, and rectal tumours. There is a need to improve survivorship amongst pancreatic, liver, and oesophageal cancer patients. Data published relating to CIRT for these tumours is promising but of lower quality and more research is needed in these areas. IMPLICATIONS FOR PRACTICE The clinical response to CIRT for certain tumours suggests the need for a carbon-ion centre in the UK. Demand for further research [phase III trials] has been identified, giving the UK opportunity to establish a research centre, with opportunity to treat, contributing to world-renowned research whilst improving patient outcomes.
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Affiliation(s)
- E Light
- School of Health Sciences, University of Liverpool, United Kingdom
| | - P Bridge
- School of Health Sciences, University of Liverpool, United Kingdom.
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2
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Shepard C, Kanai Y. Ion-Type Dependence of DNA Electronic Excitation in Water under Proton, α-Particle, and Carbon Ion Irradiation: A First-Principles Simulation Study. J Phys Chem B 2023; 127:10700-10709. [PMID: 37943091 DOI: 10.1021/acs.jpcb.3c05446] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Understanding how the electronic excitation of DNA changes in response to different high-energy particles is central to advancing ion beam cancer therapy and other related approaches, such as boron neutron capture therapy. While protons have been the predominant ions of choice in ion beam cancer therapy, heavier ions, particularly carbon ions, have drawn significant attention over the past decade. Carbon ions are expected to transfer larger amounts of energy according to linear response theory. However, molecular-level details of the electronic excitation under heavier ion irradiation remain unknown. In this work, we use real-time time-dependent density functional theory simulations to examine the quantum-mechanical details of DNA electronic excitations in water under proton, α-particle, and carbon ion irradiation. Our results show that the energy transfer does indeed increase for the heavier ions, while the excitation remains highly conformal. However, the increase in the energy transfer rate, measured by electronic stopping power, does not match the prediction by the linear response model, even when accounting for the velocity dependence of the irradiating ion's charge. The simulations also reveal that while the number of holes generated on DNA increases for heavier ions, the increase is only partially responsible for the larger stopping power. Larger numbers of highly energetic holes formed from the heavier ions also contribute significantly to the increased electronic stopping power.
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Affiliation(s)
- Christopher Shepard
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Yosuke Kanai
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
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3
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Schaltz KF, Sauer SPA. A Theoretical Study of Hydrogen Abstraction Reactions in Guanosine and Uridine. Int J Mol Sci 2023; 24:ijms24098192. [PMID: 37175899 PMCID: PMC10179689 DOI: 10.3390/ijms24098192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
All practically possible hydrogen abstraction reactions for guanosine and uridine have been investigated through quantum chemical calculations of energy barriers and rate constants. This was done at the level of density functional theory (DFT) with the ωB97X-D functional and the 6-311++G(2df,2pd) Pople basis set. Transition state theory with the Eckart tunneling correction was used to calculate the rate constants. The results show that the reaction involving the hydrogen labelled C4' in the ribofuranose part has the largest rate constant for guanosine with the value 5.097×1010 L mol-1s-1 and the largest for uridine with the value 1.62×1010 L mol-1s-1. Based on the results for these two nucleosides, there is a noticeable similarity between the rate constants in the ribofuranose part of the molecule, even though they are bound to two entirely different nucleobases.
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Affiliation(s)
- Kasper F Schaltz
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
| | - Stephan P A Sauer
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
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4
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Du TQ, Liu R, Zhang Q, Luo H, Chen Y, Tan M, Wang Q, Wu X, Liu Z, Sun S, Yang K, Tian J, Wang X. Does particle radiation have superior radiobiological advantages for prostate cancer cells? A systematic review of in vitro studies. Eur J Med Res 2022; 27:306. [PMID: 36572945 PMCID: PMC9793637 DOI: 10.1186/s40001-022-00942-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/07/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Charged particle beams from protons to carbon ions provide many significant physical benefits in radiation therapy. However, preclinical studies of charged particle therapy for prostate cancer are extremely limited. The aim of this study was to comprehensively investigate the biological effects of charged particles on prostate cancer from the perspective of in vitro studies. METHODS We conducted a systematic review by searching EMBASE (OVID), Medline (OVID), and Web of Science databases to identify the publications assessing the radiobiological effects of charged particle irradiation on prostate cancer cells. The data of relative biological effectiveness (RBE), surviving fraction (SF), standard enhancement ratio (SER) and oxygen enhancement ratio (OER) were extracted. RESULTS We found 12 studies met the eligible criteria. The relative biological effectiveness values of proton and carbon ion irradiation ranged from 0.94 to 1.52, and 1.67 to 3.7, respectively. Surviving fraction of 2 Gy were 0.17 ± 0.12, 0.55 ± 0.20 and 0.53 ± 0.16 in carbon ion, proton, and photon irradiation, respectively. PNKP inhibitor and gold nanoparticles were favorable sensitizing agents, while it was presented poorer performance in GANT61. The oxygen enhancement ratio values of photon and carbon ion irradiation were 2.32 ± 0.04, and 1.77 ± 0.13, respectively. Charged particle irradiation induced more G0-/G1- or G2-/M-phase arrest, more expression of γ-H2AX, more apoptosis, and lower motility and/or migration ability than photon irradiation. CONCLUSIONS Both carbon ion and proton irradiation have advantages over photon irradiation in radiobiological effects on prostate cancer cell lines. Carbon ion irradiation seems to have further advantages over proton irradiation.
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Affiliation(s)
- Tian-Qi Du
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.32566.340000 0000 8571 0482The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Ruifeng Liu
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.410726.60000 0004 1797 8419Graduate School, University of Chinese Academy of Sciences, Beijing, People’s Republic of China ,Heavy Ion Therapy Center, Lanzhou Heavy Ion Hospital, Lanzhou, Gansu People’s Republic of China
| | - Qiuning Zhang
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.410726.60000 0004 1797 8419Graduate School, University of Chinese Academy of Sciences, Beijing, People’s Republic of China ,Heavy Ion Therapy Center, Lanzhou Heavy Ion Hospital, Lanzhou, Gansu People’s Republic of China
| | - Hongtao Luo
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.410726.60000 0004 1797 8419Graduate School, University of Chinese Academy of Sciences, Beijing, People’s Republic of China ,Heavy Ion Therapy Center, Lanzhou Heavy Ion Hospital, Lanzhou, Gansu People’s Republic of China
| | - Yanliang Chen
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.32566.340000 0000 8571 0482The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Mingyu Tan
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.32566.340000 0000 8571 0482The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Qian Wang
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.32566.340000 0000 8571 0482The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Xun Wu
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.32566.340000 0000 8571 0482The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Zhiqiang Liu
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.410726.60000 0004 1797 8419Graduate School, University of Chinese Academy of Sciences, Beijing, People’s Republic of China ,Heavy Ion Therapy Center, Lanzhou Heavy Ion Hospital, Lanzhou, Gansu People’s Republic of China
| | - Shilong Sun
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.410726.60000 0004 1797 8419Graduate School, University of Chinese Academy of Sciences, Beijing, People’s Republic of China ,Heavy Ion Therapy Center, Lanzhou Heavy Ion Hospital, Lanzhou, Gansu People’s Republic of China
| | - Kehu Yang
- grid.32566.340000 0000 8571 0482Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Jinhui Tian
- grid.32566.340000 0000 8571 0482Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu People’s Republic of China
| | - Xiaohu Wang
- grid.9227.e0000000119573309Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd, Lanzhou, 730000 Gansu People’s Republic of China ,grid.32566.340000 0000 8571 0482The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China ,grid.410726.60000 0004 1797 8419Graduate School, University of Chinese Academy of Sciences, Beijing, People’s Republic of China ,Heavy Ion Therapy Center, Lanzhou Heavy Ion Hospital, Lanzhou, Gansu People’s Republic of China
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Cui Y, Yin S, Qin X, Jiao W, Ren A, Wang F, Zhao B. Advances in the treatment of intraocular malignancies: A literature review. Front Med (Lausanne) 2022; 9:975565. [PMID: 36330064 PMCID: PMC9624174 DOI: 10.3389/fmed.2022.975565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/17/2022] [Indexed: 11/29/2022] Open
Abstract
Intraocular malignant tumors including primary and metastatic tumors, are mainly found in Retina and uvea, and very few cases originate from the sclera and optic nerve. Intraocular tumors can endanger the patient's vision and even life, and proper treatment is vital. There have been several traditional treatments for intraocular tumors, such as radiotherapy, chemotherapy and surgery. In recent years, new methods have been developed in clinical applications including anti-VEGF and gene therapy. This paper aims to provide a timely review about recent progress in the treatment of intraocular malignant tumor.
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Affiliation(s)
- Yanyan Cui
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shan Yin
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xuejiao Qin
- The Second Hospital of Shandong University, Jinan, China
| | - Wanzhen Jiao
- Department of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Anqi Ren
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fei Wang
- Shengli Oilfield Central Hospital, Dongying, China
| | - Bojun Zhao
- Department of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Bojun Zhao
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6
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Atallah S, Marc M, Schernberg A, Huguet F, Wagner I, Mäkitie A, Baujat B. Beyond Surgical Treatment in Adenoid Cystic Carcinoma of the Head and Neck: A Literature Review. Cancer Manag Res 2022; 14:1879-1890. [PMID: 35693117 PMCID: PMC9176735 DOI: 10.2147/cmar.s355663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 04/24/2022] [Indexed: 12/16/2022] Open
Abstract
Introduction Adenoid cystic carcinoma (AdCC) is a rare tumour as it accounts for about 10% of all salivary gland neoplasms. It occurs in all age groups with a predominance of women, but no risk factors have been identified to date. Although AdCC behaves as a slow-growing tumour, it is characterized by multiple and late recurrences. Therefore, we aim to update the knowledge of the treatment options in advanced and recurrent cases. Materials and Methods We performed a systematic literature review to provide a synthesis of the practical knowledge required for AdCC non-surgical management. Altogether, 99 out of the 1208 available publications were selected for analysis. Results AdCC is described as a basaloid tumour consisting of epithelial and myoepithelial cells. Immunohistochemistry is useful for diagnosis (PS100, Vimentin, CD117, CKit, muscle actin, p63) and for prognosis (Ki67). Identified mutations could lead to therapeutic opportunities (MYB-NFIB, Notch 1). The work-up is mainly based on neck and chest CT scan and MRI, and PET-CT with 18-FDG or PSMA can be considered. Surgical treatment remains the gold standard in resectable cases. Post-operative intensity modulated radiotherapy is the standard of care, but hadron therapy may be used in specific situations. Based on the available literature, no standard chemotherapy regimen can be recommended. Conclusion There is currently no consensus on the use of chemotherapy in AdCC, either concomitantly to RT in a postoperative setting or at a metastatic stage. Further, the available targeted therapies do not yet provide significant tumour response.
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Affiliation(s)
- Sarah Atallah
- Department of Otorhinolaryngology–Head and Neck Surgery, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
- Doctoral School of Public Health, University of Paris Sud, CESP, INSERM U1018, University of Paris-Saclay, UVSQ, Villejuif, France
- Correspondence: Sarah Atallah, Hôpital Tenon, AP-HP, 4 rue de la Chine, Paris, 75020, France, Tel +33 156016417, Email
| | - Morgane Marc
- Department of Otorhinolaryngology–Head and Neck Surgery, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
| | - Antoine Schernberg
- Department of Radiotherapy, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
| | - Florence Huguet
- Department of Radiotherapy, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
| | - Isabelle Wagner
- Department of Otorhinolaryngology–Head and Neck Surgery, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
| | - Antti Mäkitie
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Bertrand Baujat
- Department of Otorhinolaryngology–Head and Neck Surgery, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
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Tiwari DK, Hannen R, Unger K, Kohl S, Heß J, Lauber K, Subtil FSB, Dikomey E, Engenhart-Cabillic R, Schötz U. IL1 Pathway in HPV-Negative HNSCC Cells Is an Indicator of Radioresistance After Photon and Carbon Ion Irradiation Without Functional Involvement. Front Oncol 2022; 12:878675. [PMID: 35530351 PMCID: PMC9072779 DOI: 10.3389/fonc.2022.878675] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
Abstract
Background Treatment of locally advanced HPV-negative head and neck squamous cell carcinoma (HNSCC) with photon radiation is the standard of care but shows only moderate success. Alterations in response toward DNA DSB repair, apoptosis, and senescence are underlying determinants of radioresistance in the tumor cells. Recently, senescence and the associated secretory phenotype (SASP) came into the focus of research and raised the need to identify the tumor-promoting molecular mechanisms of the SASP. The aim of this project was to unravel more of this process and to understand the impact of the IL1 pathway, which plays a major role in SASP. The studies were performed for photon and 12C-ion irradiation, which strongly vary in their effect on radioresistance. Materials and Methods A panel of five HPV-negative HNSCC cell lines was treated with photon and 12C-ion irradiation and examined for clonogenic survival, DNA DSB repair, and senescence. SASP and IL1 gene expressions were determined by RNA sequencing and activation of the IL1 pathway by ELISA. A functional impact of IL1A and IL1B was examined by specific siRNA knockdown. Results Cell killing and residual DSBs were higher after 12C-ion than after photon irradiation. 12C-ion induced more senescence with a significant correlation with cell survival. The impact on radioresistance appears to be less than after photon irradiation. The expression of SASP-related genes and the IL1 pathway are strongly induced by both types of irradiation and correlate with radioresistance and senescence, especially IL1A and IL1B which exhibit excellent associations. Surprisingly, knockdown of IL1A and IL1B revealed that the IL1 pathway is functionally not involved in radioresistance, DSB repair, or induction of senescence. Conclusions IL1A and IL1B are excellent indicators of cellular radioresistance and senescence in HNSCC cells without functional involvement in these processes. Clearly more research is needed to understand the molecular mechanisms of senescence and SASP and its impact on radioresistance.
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Affiliation(s)
- Dinesh Kumar Tiwari
- Department of Radiotherapy and Radiooncology, Philipps-University Marburg, Marburg, Germany
| | - Ricarda Hannen
- Department of Radiotherapy and Radiooncology, Philipps-University Marburg, Marburg, Germany
| | - Kristian Unger
- Research Unit Radiation Cytogenetics, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- Department of Radiation Oncology, University Hospital, Ludwig-Maximilians-University (LMU) München, Munich, Germany
- Clinical Cooperation Group “Personalized Radiotherapy in Head and Neck Cancer”, Helmholtz Zentrum München, Neuherberg, Germany
| | - Sibylla Kohl
- Department of Radiotherapy and Radiooncology, Philipps-University Marburg, Marburg, Germany
| | - Julia Heß
- Research Unit Radiation Cytogenetics, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- Department of Radiation Oncology, University Hospital, Ludwig-Maximilians-University (LMU) München, Munich, Germany
- Clinical Cooperation Group “Personalized Radiotherapy in Head and Neck Cancer”, Helmholtz Zentrum München, Neuherberg, Germany
| | - Kirsten Lauber
- Department of Radiation Oncology, University Hospital, Ludwig-Maximilians-University (LMU) München, Munich, Germany
| | | | - Ekkehard Dikomey
- Department of Radiotherapy and Radiooncology, Philipps-University Marburg, Marburg, Germany
| | | | - Ulrike Schötz
- Department of Radiotherapy and Radiooncology, Philipps-University Marburg, Marburg, Germany
- *Correspondence: Ulrike Schötz,
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8
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Eberle F, Engenhart-Cabillic R, Schymalla MM, Dumke C, Schötz U, Subtil FSB, Baumann KS, Stuck BA, Langer C, Jensen AD, Hauswald H, Lautenschläger S. Carbon Ion Beam Boost Irradiation in Malignant Tumors of the Nasal Vestibule and the Anterior Nasal Cavity as an Organ-Preserving Therapy. Front Oncol 2022; 12:814082. [PMID: 35242709 PMCID: PMC8886023 DOI: 10.3389/fonc.2022.814082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/19/2022] [Indexed: 11/20/2022] Open
Abstract
Background Surgery and radiotherapy are current therapeutic options for malignant tumors involving the nasal vestibule. Depending on the location, organ-preserving resection is not always possible, even for small tumors. Definitive radiotherapy is an alternative as an organ-preserving procedure. Carbon ion beam radiotherapy offers highly conformal dose distributions and more complex biological radiation effects eventually resulting in optimized normal tissue sparing and improved outcome. The aim of the current study was to analyze toxicity, local control (LC), and organ preserving survival (OPS) after irradiation of carcinoma of the nasal vestibule with raster-scanned carbon ion radiotherapy boost (CIRT-B) combined with volumetric intensity modulated arc therapy (VMAT) with photons. Methods Between 12/2015 and 05/2021, 21 patients with malignant tumors involving the nasal vestibule were irradiated with CIRT-B combined with VMAT and retrospectively analyzed. Diagnosis was based on histologic findings. A total of 17 patients had squamous cell carcinoma (SCC) and 4 had other histologies. In this series, 10%, 67%, and 24% of patients had Wang stages 1, 2, and 3 tumors, respectively. Three patients had pathologic cervical nodes on MRI. The median CIRT-B dose was 24 Gy(RBE), while the median VMAT dose was 50 Gy. All patients with pathologic cervical nodes received simultaneously integrated boost with photons (SIB) up to a median dose of 62.5 Gy to the pathological lymph nodes. Eight patients received cisplatin chemotherapy. All patients received regular follow-up imaging after irradiation. Kaplan–Meier estimation was used for statistical assessment. Results The median follow-up after irradiation was 18.9 months. There were no common toxicity criteria grade 5 or 4 adverse events. A total of 20 patients showed grade 3 adverse events mainly on skin and mucosa. All patients were alive at the end of follow-up. The median OPS after treatment was 56.5 months. The 6- and 24-month OPS were 100% and 83.3%, respectively. All local recurrences occurred within 12 months after radiotherapy. The median progression free survival (PFS) after treatment was 52.4 months. The 6-, 12-, and 24-month PFS rates were 95%, 83.6%, and 74.3%, respectively. Conclusion CIRT-B combined with VMAT in malignant tumors of the nasal vestibule is safe and feasible, results in high local control rates, and thus is a good option as organ-preserving therapy. No radiation-associated grade 4 or 5 acute or late AE was documented.
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Affiliation(s)
- Fabian Eberle
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Rita Engenhart-Cabillic
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Markus M Schymalla
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Christoph Dumke
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Ulrike Schötz
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Florentine S B Subtil
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Kilian-Simon Baumann
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Boris A Stuck
- Department of Otolaryngology/Head & Neck Surgery, Marburg University Hospital, Marburg, Germany
| | - Christine Langer
- Department of Otolaryngology/Head & Neck Surgery, Gießen University Hospital, Gießen, Germany
| | - Alexandra D Jensen
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Department of Radiation Oncology, Gießen University Hospital, Gießen, Germany
| | - Henrik Hauswald
- Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Stefan Lautenschläger
- Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany.,Marburg Ion-Beam Therapy Center (MIT), Department of Radiation Oncology, Marburg University Hospital, Marburg, Germany
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9
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Sørensen LN, Sauer SP. Implicit and explicit solvent models have opposite effects on radiation damage rate constant for thymine. ADVANCES IN QUANTUM CHEMISTRY 2022. [DOI: 10.1016/bs.aiq.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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10
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Bey A, Ma J, Furutani KM, Herman MG, Johnson JE, Foote RL, Beltran CJ. Nuclear Fragmentation Imaging for Carbon-Ion Radiation Therapy Monitoring: an In Silico Study. Int J Part Ther 2021; 8:25-36. [PMID: 35530183 PMCID: PMC9009459 DOI: 10.14338/ijpt-20-00040.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 07/08/2021] [Indexed: 11/21/2022] Open
Abstract
Purpose This article presents an in vivo imaging technique based on nuclear fragmentation of carbon ions in irradiated tissues for potential real-time monitoring of carbon-ion radiation therapy (CIRT) treatment delivery and quality assurance purposes in clinical settings. Materials and Methods A proof-of-concept imaging and monitoring system (IMS) was devised to implement the technique. Monte Carlo simulations were performed for a prospective pencil-beam scanning CIRT nozzle. The development IMS benchmark considered a 5×5-cm2 pixelated charged-particle detector stack positioned downstream from a target phantom and list-mode data acquisition. The abundance and production origins, that is, vertices, of the detected fragments were studied. Fragment trajectories were approximated by straight lines and a beam back-projection algorithm was built to reconstruct the vertices. The spatial distribution of the vertices was then used to determine plan relevant markers. Results The IMS technique was applied for a simulated CIRT case, a primary brain tumor. Four treatment plan monitoring markers were conclusively recovered: a depth dose distribution correlated profile, ion beam range, treatment target boundaries, and the beam spot position. Promising millimeter-scale (3-mm, ≤10% uncertainty) beam range and submillimeter (≤0.6-mm precision for shifts <3 cm) beam spot position verification accuracies were obtained for typical therapeutic energies between 150 and 290 MeV/u. Conclusions This work demonstrated a viable online monitoring technique for CIRT treatment delivery. The method's strong advantage is that it requires few signal inputs (position and timing), which can be simultaneously acquired with readily available technology. Future investigations will probe the technique's applicability to motion-sensitive organ sites and patient tissue heterogeneities. In-beam measurements with candidate detector-acquisition systems are ultimately essential to validate the IMS benchmark performance and subsequent deployment in the clinic.
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Affiliation(s)
- Anissa Bey
- Department of Radiation Oncology, Mayo Clinic, Rochester MN, USA
| | - Jiasen Ma
- Department of Radiation Oncology, Mayo Clinic, Rochester MN, USA
| | - Keith M. Furutani
- Department of Radiation Oncology, Mayo Clinic, Jacksonville, FL, USA
| | | | | | - Robert L. Foote
- Department of Radiation Oncology, Mayo Clinic, Rochester MN, USA
| | - Chris J. Beltran
- Department of Radiation Oncology, Mayo Clinic, Jacksonville, FL, USA
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11
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Keta O, Petković V, Cirrone P, Petringa G, Cuttone G, Sakata D, Shin WG, Incerti S, Petrović I, Ristić Fira A. DNA double-strand breaks in cancer cells as a function of proton linear energy transfer and its variation in time. Int J Radiat Biol 2021; 97:1229-1240. [PMID: 34187289 DOI: 10.1080/09553002.2021.1948140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 01/08/2023]
Abstract
PURPOSE The complex relationship between linear energy transfer (LET) and cellular response to radiation is not yet fully elucidated. To better characterize DNA damage after irradiations with therapeutic protons, we monitored formation and disappearance of DNA double-strand breaks (DNA DSB) as a function of LET and time. Comparisons with conventional γ-rays and high LET carbon ions were also performed. MATERIALS AND METHODS In the present work, we performed immunofluorescence-based assay to determine the amount of DNA DSB induced by different LET values along the 62 MeV therapeutic proton Spread out Bragg peak (SOBP) in three cancer cell lines, i.e. HTB140 melanoma, MCF-7 breast adenocarcinoma and HTB177 non-small lung cancer cells. Time dependence of foci formation was followed as well. To determine irradiation positions, corresponding to the desired LET values, numerical simulations were carried out using Geant4 toolkit. We compared γ-H2AX foci persistence after irradiations with protons to that of γ-rays and carbon ions. RESULTS With the rise of LET values along the therapeutic proton SOBP, the increase of γ-H2AX foci number is detected in the three cell lines up to the distal end of the SOBP, while there is a decrease on its distal fall-off part. With the prolonged incubation time, the number of foci gradually drops tending to attain the residual level. For the maximum number of DNA DSB, irradiation with protons attain higher level than that of γ-rays. Carbon ions produce more DNA DSB than protons but not substantially. The number of residual foci produced by γ-rays is significantly lower than that of protons and particularly carbon ions. Carbon ions do not produce considerably higher number of foci than protons, as it could be expected due to their physical properties. CONCLUSIONS In situ visualization of γ-H2AX foci reveal creation of more lesions in the three cell lines by clinically relevant proton SOBP than γ-rays. The lack of significant differences in the number of γ-H2AX foci between the proton and carbon ion-irradiated samples suggests an increased complexity of DNA lesions and slower repair kinetics after carbon ions compared to protons. For all three irradiation types, there is no major difference between the three cell lines shortly after irradiations, while later on, the formation of residual foci starts to express the inherent nature of tested cells, therefore increasing discrepancy between them.
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Affiliation(s)
- Otilija Keta
- Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Vladana Petković
- Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Pablo Cirrone
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nuceare, Catania, Italy
- Physics and Astronomy Department "E. Majorana", University of Catania, Catania, Italy
- Centro Siciliano di Fisica Nucleare e Struttura della Materia (CSFNSM), Catania, Italy
| | - Giada Petringa
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nuceare, Catania, Italy
- Institute of Physics (IoP) of the Czech Academy of Science (CAS), ELI-Beamlines, Prague, Czech Republic
| | - Giacomo Cuttone
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nuceare, Catania, Italy
- Physics and Astronomy Department "E. Majorana", University of Catania, Catania, Italy
| | - Dousatsu Sakata
- Department of Accelerator and Medical Physics, NIRS, Chiba, QST, Japan
| | - Wook-Geun Shin
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | | | - Ivan Petrović
- Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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12
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Jin Y, Li J, Li J, Zhang N, Guo K, Zhang Q, Wang X, Yang K. Visualized Analysis of Heavy Ion Radiotherapy: Development, Barriers and Future Directions. Front Oncol 2021; 11:634913. [PMID: 34307120 PMCID: PMC8300564 DOI: 10.3389/fonc.2021.634913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 06/16/2021] [Indexed: 12/25/2022] Open
Abstract
Background Heavy ion radiotherapy (HIRT) has great advantages as tumor radiotherapy. Methods Based on 1,558 literatures from core collections of Web of Science from 1980 to 2020, this study visually analyzes the evolution of HIRT research, and sorts out the hotspots and trends of HIRT research using CiteSpace software. Results Research on HIRT has received more extensive attention over the last 40 years. The development of HIRT is not only closely related to radiation and oncology, but also closely related to the development of human society. In terms of citation frequency, "International Journal of Radiation Oncology*Biology*Physics" was the top journal. In terms of influence, "Radiotherapy and Oncology" was the top journal. "Radiation therapy" and "carbon ion radiotherapy" were the two most frequently used keywords in this field. Conclusion The evolution of the HIRT research has occurred in approximately three stages, including technological exploration, safety and effectiveness research and technological breakthroughs. Finally, some suggestions for future research are put forward.
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Affiliation(s)
- Yuanchang Jin
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Heavy Ion Treatment Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
| | - Jingwen Li
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Jieyun Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Na Zhang
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Kangle Guo
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Qiuning Zhang
- Heavy Ion Treatment Center, Lanzhou Heavy Ions Hospital, Lanzhou, China.,Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Xiaohu Wang
- Heavy Ion Treatment Center, Lanzhou Heavy Ions Hospital, Lanzhou, China.,Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Kehu Yang
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
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13
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Rudigkeit S, Reindl JB, Matejka N, Ramson R, Sammer M, Dollinger G, Reindl J. CeCILE - An Artificial Intelligence Based Cell-Detection for the Evaluation of Radiation Effects in Eucaryotic Cells. Front Oncol 2021; 11:688333. [PMID: 34277433 PMCID: PMC8278143 DOI: 10.3389/fonc.2021.688333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/31/2021] [Indexed: 12/03/2022] Open
Abstract
The fundamental basis in the development of novel radiotherapy methods is in-vitro cellular studies. To assess different endpoints of cellular reactions to irradiation like proliferation, cell cycle arrest, and cell death, several assays are used in radiobiological research as standard methods. For example, colony forming assay investigates cell survival and Caspase3/7-Sytox assay cell death. The major limitation of these assays is the analysis at a fixed timepoint after irradiation. Thus, not much is known about the reactions before or after the assay is performed. Additionally, these assays need special treatments, which influence cell behavior and health. In this study, a completely new method is proposed to tackle these challenges: A deep-learning algorithm called CeCILE (Cell Classification and In-vitro Lifecycle Evaluation), which is used to detect and analyze cells on videos obtained from phase-contrast microscopy. With this method, we can observe and analyze the behavior and the health conditions of single cells over several days after treatment, up to a sample size of 100 cells per image frame. To train CeCILE, we built a dataset by labeling cells on microscopic images and assign class labels to each cell, which define the cell states in the cell cycle. After successful training of CeCILE, we irradiated CHO-K1 cells with 4 Gy protons, imaged them for 2 days by a microscope equipped with a live-cell-imaging set-up, and analyzed the videos by CeCILE and by hand. From analysis, we gained information about cell numbers, cell divisions, and cell deaths over time. We could show that similar results were achieved in the first proof of principle compared with colony forming and Caspase3/7-Sytox assays in this experiment. Therefore, CeCILE has the potential to assess the same endpoints as state-of-the-art assays but gives extra information about the evolution of cell numbers, cell state, and cell cycle. Additionally, CeCILE will be extended to track individual cells and their descendants throughout the whole video to follow the behavior of each cell and the progeny after irradiation. This tracking method is capable to put radiobiologic research to the next level to obtain a better understanding of the cellular reactions to radiation.
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Affiliation(s)
- Sarah Rudigkeit
- Institut für Angewandte Physik und Messtechnik, Universität der Bundeswehr München, Neubiberg, Germany
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14
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Chan CC, Chen FH, Hsiao YY. Impact of Hypoxia on Relative Biological Effectiveness and Oxygen Enhancement Ratio for a 62-MeV Therapeutic Proton Beam. Cancers (Basel) 2021; 13:2997. [PMID: 34203882 PMCID: PMC8232608 DOI: 10.3390/cancers13122997] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/07/2021] [Accepted: 06/09/2021] [Indexed: 01/11/2023] Open
Abstract
This study uses the yields of double-strand breaks (DSBs) to determine the relative biological effectiveness (RBE) of proton beams, using cell survival as a biological endpoint. DSB induction is determined when cells locate at different depths (6 positions) along the track of 62 MeV proton beams. The DNA damage yields are estimated using Monte Carlo Damage Simulation (MCDS) software. The repair outcomes are estimated using Monte Carlo excision repair (MCER) simulations. The RBE for cell survival at different oxygen concentrations is calculated using the repair-misrepair-fixation (RMF) model. Using 60Co γ-rays (linear energy transfer (LET) = 2.4 keV/μm) as the reference radiation, the RBE for DSB induction and enzymatic DSB under aerobic condition (21% O2) are in the range 1.0-1.5 and 1.0-1.6 along the track depth, respectively. In accord with RBE obtained from experimental data, RMF model-derived RBE values for cell survival are in the range of 1.0-3.0. The oxygen enhancement ratio (OER) for cell survival (10%) decreases from 3.0 to 2.5 as LET increases from 1.1 to 22.6 keV/μm. The RBE values for severe hypoxia (0.1% O2) are in the range of 1.1-4.4 as LET increases, indicating greater contributions of direct effects for protons. Compared with photon therapy, the overall effect of 62 MeV proton beams results in greater cell death and is further intensified under hypoxic conditions.
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Affiliation(s)
- Chun-Chieh Chan
- Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, Taiwan;
| | - Fang-Hsin Chen
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan 33302, Taiwan;
- Radiation Biology Research Center, Institute for Radiological Research, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Radiation Oncology, Chang Gung Memorial Hospital—Linkou Branch, Taoyuan 33305, Taiwan
| | - Ya-Yun Hsiao
- Department of Radiology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung 40201, Taiwan
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15
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Chan CC, Hsiao YY. The Effects of Dimethylsulfoxide and Oxygen on DNA Damage Induction and Repair Outcomes for Cells Irradiated by 62 MeV Proton and 3.31 MeV Helium Ions. J Pers Med 2021; 11:jpm11040286. [PMID: 33917956 PMCID: PMC8068342 DOI: 10.3390/jpm11040286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
Reactive oxygen species (ROS) play an essential role in radiation-induced indirect actions. In terms of DNA damage, double strand breaks (DSBs) have the greatest effects on the repair of DNA damage, cell survival and transformation. This study evaluated the biological effects of the presence of ROS and oxygen on DSB induction and mutation frequency. The relative biological effectiveness (RBE) and oxygen enhancement ratio (OER) of 62 MeV therapeutic proton beams and 3.31 MeV helium ions were calculated using Monte Carlo damage simulation (MCDS) software. Monte Carlo excision repair (MCER) simulations were used to calculate the repair outcomes (mutation frequency). The RBE values of proton beams decreased to 0.75 in the presence of 0.4 M dimethylsulfoxide (DMSO) and then increases to 0.9 in the presence of 2 M DMSO while the RBE values of 3.31 MeV helium ions increased from 2.9 to 5.7 (0–2 M). The mutation frequency of proton beams also decreased from 0.008–0.065 to 0.004–0.034 per cell per Gy by the addition of 2 M DMSO, indicating that ROS affects both DSB induction and repair outcomes. These results show that the combined use of DMSO in normal tissues and an increased dose in tumor regions increases treatment efficiency.
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Affiliation(s)
- Chun-Chieh Chan
- Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, Taiwan;
| | - Ya-Yun Hsiao
- Department of Radiology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung 40201, Taiwan
- Correspondence: ; Tel.: +886-4-24730022 (ext. 12010)
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16
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Takayama K, Kato T, Nakamura T, Azami Y, Ono T, Suzuki M, Takada A, Yamaguchi H, Seto I, Nakasato T, Wada H, Kikuchi Y, Mitsudo K, Fuwa N, Murakami M. Proton beam therapy combined with intra-arterial infusion chemotherapy for stage Ⅳ adenoid cystic carcinoma of the base of the tongue. TOUKEIBU GAN 2021; 47:21-29. [DOI: 10.5981/jjhnc.47.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Affiliation(s)
- Kanako Takayama
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine
| | - Takahiro Kato
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Tatsuya Nakamura
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Yusuke Azami
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Takashi Ono
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Motohisa Suzuki
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | | | - Hisashi Yamaguchi
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Ichiro Seto
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | | | - Hitoshi Wada
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Yasuhiro Kikuchi
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
| | - Kenji Mitsudo
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine
| | - Nobukazu Fuwa
- Department of Radiation Oncology, Ise Red Cross Hospital
| | - Masao Murakami
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center
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17
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Takayama K, Nakamura T, Takada A, Kato T, Sakuma H, Mitsudo K, Fuwa N, Murakami M. Proton beam therapy combined with retrograde intra-arterial infusion chemotherapy for an extremely rapid growing recurrent ameloblastic carcinoma: A case report. Mol Clin Oncol 2020; 13:34. [PMID: 32802330 PMCID: PMC7412713 DOI: 10.3892/mco.2020.2104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 07/01/2020] [Indexed: 11/17/2022] Open
Abstract
Ameloblastic carcinoma (AC) is a very rare malignant odontogenic tumor. Although surgical resection is generally performed, treatment approaches have not been established for recurrent cases. Chemotherapy and radiotherapy are positioned as adjunctive therapies, and few studies investigated definitive non-operative therapy. We present the case of a 71-year-old male with recurrent secondary-type AC arising from the right maxilla, who was treated with proton beam therapy (PBT; 71.4 Gy relative biological effectiveness in 32 fractions) combined with continuous intra-arterial infusion of cisplatin (40 mg/m2) and docetaxel (8 mg/m2). The patient experienced acute grade 3 mucositis, dermatitis and neutropenia, which were resolved within 3 months of treatment. Late adverse events were grade 1 skin atrophy, and grade 2 right optic nerve disorder and retinopathy. After ~8 years of treatment, the patient died from another cause but did not experience any relapse or metastasis during the follow-up period of 94 months. To the best of our knowledge, this is the first report of recurrent AC treated with PBT and intra-arterial infusion chemotherapy without any severe late adverse events. This combination therapy approach may be considered as an effective therapeutic option for inoperable AC.
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Affiliation(s)
- Kanako Takayama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Fukushima 963-8052, Japan.,Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Tatsuya Nakamura
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Fukushima 963-8052, Japan
| | - Akinori Takada
- Department of Radiology, Mie University Hospital, Tsu, Mie 514-8507, Japan
| | - Takahiro Kato
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Fukushima 963-8052, Japan
| | - Hideo Sakuma
- Department of Pathology, Southern Tohoku General Hospital, Koriyama, Fukushima 963-8563, Japan
| | - Kenji Mitsudo
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Nobukazu Fuwa
- Department of Radiation Oncology, Ise Red Cross Hospital, Ise, Mie 516-0008, Japan
| | - Masao Murakami
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama, Fukushima 963-8052, Japan
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18
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Impact of Hypoxia on Carbon Ion Therapy in Glioblastoma Cells: Modulation by LET and Hypoxia-Dependent Genes. Cancers (Basel) 2020; 12:cancers12082019. [PMID: 32718037 PMCID: PMC7464439 DOI: 10.3390/cancers12082019] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 12/26/2022] Open
Abstract
Tumor hypoxia is known to limit the efficacy of ionizing radiations, a concept called oxygen enhancement ratio (OER). OER depends on physical factors such as pO2 and linear energy transfer (LET). Biological pathways, such as the hypoxia-inducible transcription factors (HIF), might also modulate the influence of LET on OER. Glioblastoma (GB) is resistant to low-LET radiation (X-rays), due in part to the hypoxic environment in this brain tumor. Here, we aim to evaluate in vitro whether high-LET particles, especially carbon ion radiotherapy (CIRT), can overcome the contribution of hypoxia to radioresistance, and whether HIF-dependent genes, such as erythropoietin (EPO), influence GB sensitivity to CIRT. Hypoxia-induced radioresistance was studied in two human GB cells (U251, GL15) exposed to X-rays or to carbon ion beams with various LET (28, 50, 100 keV/µm), and in genetically-modified GB cells with downregulated EPO signaling. Cell survival, radiobiological parameters, cell cycle, and ERK activation were assessed under those conditions. The results demonstrate that, although CIRT is more efficient than X-rays in GB cells, hypoxia can limit CIRT efficacy in a cell-type manner that may involve differences in ERK activation. Using high-LET carbon beams, or targeting hypoxia-dependent genes such as EPO might reduce the effects of hypoxia.
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19
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Azami Y, Hayashi Y, Nakamura T, Kimura K, Yamaguchi H, Ono T, Takayama K, Hirose K, Yabuuchi T, Suzuki M, Hatayama Y, Hareyama M, Kikuchi Y, Fuwa N. Proton Beam Therapy for Locally Recurrent Parotid Gland Cancer. Indian J Otolaryngol Head Neck Surg 2019; 71:49-54. [PMID: 31741929 PMCID: PMC6848668 DOI: 10.1007/s12070-016-1008-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 07/05/2016] [Indexed: 10/21/2022] Open
Abstract
The aim of this study was to evaluate the efficacy and safety of proton beam therapy for patients with locally recurrent parotid cancer. Between 2009 and 2012, ten patients with locally recurrent parotid gland cancer were treated with proton beam therapy (70.2 Gy equivalents in 32 fractions) with or without intra-arterial infusion chemotherapy of cisplatin (50 mg/body/week, for a total of 5-8 weeks). The median follow-up was 24 months (range 10-49 months). The 1-year overall survival and local control rates were 80 %, and the 3-year overall survival and local control rates were 60 %. None of the patients experienced grade 3-5 toxicities in the treatment or the follow-up periods. These findings suggest that proton beam therapy could be applied effectively and safely for patients with locally recurrent parotid gland cancer.
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Affiliation(s)
- Yusuke Azami
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Yuichiro Hayashi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tatsuya Nakamura
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Kanako Kimura
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Hisashi Yamaguchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Takashi Ono
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Kanako Takayama
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Katsumi Hirose
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Tomonori Yabuuchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Motohisa Suzuki
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Yoshiomi Hatayama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Masato Hareyama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Yasuhiro Kikuchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172 Yatsuyamada, Koriyama City, Fukusima 963-8052 Japan
| | - Nobukazu Fuwa
- Department of Radiation Oncology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
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20
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Takayama K, Kato T, Nakamura T, Azami Y, Ono T, Suzuki M, Takada A, Yamaguchi H, Seto I, Nakasato T, Wada H, Kikuchi Y, Mitsudo K, Fuwa N, Murakami M. Proton Beam Therapy Combined with Intra-Arterial Infusion Chemotherapy for Stage IV Adenoid Cystic Carcinoma of the Base of the Tongue. Cancers (Basel) 2019; 11:cancers11101413. [PMID: 31546728 PMCID: PMC6826952 DOI: 10.3390/cancers11101413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/12/2019] [Accepted: 09/20/2019] [Indexed: 01/06/2023] Open
Abstract
Adenoid cystic carcinoma (ACC) is a very rare epithelial tumor of the salivary glands. Surgical resection is considered to be a standard therapy. However, the optimal treatment strategy for managing advanced cases has not yet been established. This study evaluated the efficacy and toxicity of proton beam therapy (PBT) combined with selective intra-arterial infusion chemotherapy (IAIC) using weekly cisplatin for locally advanced ACC of the base of the tongue. Between March 2009 and February 2018, 15 patients were treated. The median follow-up duration was 56 (range: 15–116) months. The 5-year local control and overall survival rates were 89% and 76%, respectively. With regard to late toxicities, grade 2 osteoradionecrosis was found in one patient and grade 5 pharyngeal necrosis was observed in one patient. Considering most cases were significantly advanced and inoperable, this therapy was effective in controlling the primary tumor, preserving function and maintaining the quality of life. Although improvements are needed to reduce adverse events, PBT in combination with IAIC can be a treatment option for locally advanced ACC of the base of the tongue.
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Affiliation(s)
- Kanako Takayama
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa, Yokohama, Kanagawa 236-0004, Japan.
| | - Takahiro Kato
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Tatsuya Nakamura
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Yusuke Azami
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Takashi Ono
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Motohisa Suzuki
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Akinori Takada
- Department of Radiation Oncology, Mie University Hospital, 2-174, Edobashi Tsu, Mie 514-8507, Japan.
| | - Hisashi Yamaguchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Ichiro Seto
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Tatsuhiko Nakasato
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Hitoshi Wada
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Yasuhiro Kikuchi
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
| | - Kenji Mitsudo
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa, Yokohama, Kanagawa 236-0004, Japan.
| | - Nobukazu Fuwa
- Department of Radiation Oncology, Ise red cross hospital, 1-471-2, Funae, Ise, Mie 516-8512, Japan.
| | - Masao Murakami
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, 7-172, Yatsuyamada, Koriyama, Fukushima 963-8052, Japan.
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Zhang R, Dang X, Zhang Z, Yuan Y, Ren Y, Duan Z, Zuo Y. Comparison of transcriptional profiles in human lymphocyte cells irradiated with 12C ion beams at 0-2.0 Gy. Cancer Manag Res 2019; 11:2363-2369. [PMID: 30962723 PMCID: PMC6434914 DOI: 10.2147/cmar.s188959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE Heavy ions have contributed to tumor site-specific radiotherapy and are a major health risk for astronauts. The purpose of this study was to investigate the changes in gene expression in peripheral lymphocytes of cancer patients and astronauts exposed to 12C ions, and identify suitable molecular biomarkers for health monitoring. We also aimed to observe the effects of treatment and the level of damage, by comparing the transcriptional profiles of human lymphocyte cell lines exposed to 12C ion beams at doses of 0-2.0 Gy. MATERIALS AND METHODS A human lymphocyte cell line was irradiated with 12C ion beams at 0, 0.1, 0.5, and 2.0 Gy and transcriptional profiles were evaluated using the Agilent human gene expression microarray at 24 hours after irradiation. Differentially expressed genes were identified using a fold change of ≥2.0. Representative genes were further validated by RT-PCR. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses were performed to determine the roles of differentially expressed mRNAs. RESULTS Based on the microarray assays, 1,113 genes were upregulated and 853 genes were downregulated in human lymphocyte cells irradiated with 0.1 Gy 12C ion beams compared with the control group, 1,095 genes were upregulated and 1,220 genes were downregulated in cells irradiated with 0.5 Gy 12C ion beams, and 1,055 genes were upregulated and 1,356 genes were downregulated in cells irradiated with 2.0 Gy. A total of 504 genes were differentially expressed in all irradiated groups, of which 88 genes were upregulated and 416 genes downregulated. Most of these altered genes were related to the cell cycle, apoptosis, signal transduction, DNA transcription, repair, and replication. The expression differences were further confirmed by RT-PCR for a subset of differentially expressed genes. CONCLUSION Differentially expressed genes between treatment and control groups at 24 hours post-irradiation increased as the radiation dose increased; upregulated genes gradually decreased and downregulated genes increased. Our data indicated that 12C ion beams could repress a number of genes in a dose-dependent manner, which might lead to the failure of multiple cellular biological functions.
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Affiliation(s)
- Ruifeng Zhang
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
| | - Xuhong Dang
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
| | - Zhongxin Zhang
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
| | - Yayi Yuan
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
| | - Yue Ren
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
| | - Zhikai Duan
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
| | - Yahui Zuo
- China Institute for Radiation Protection, Taiyuan, Shanxi 030006, China,
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22
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Kawano M, Miura T, Fujita M, Koike S, Imadome K, Ishikawa A, Yasuda T, Imamura T, Imai T, Nakayama F. The FGF1/CPP-C chimera protein protects against intestinal adverse effects of C-ion radiotherapy without exacerbating pancreatic carcinoma. Clin Transl Radiat Oncol 2018; 14:8-16. [PMID: 30406211 PMCID: PMC6215021 DOI: 10.1016/j.ctro.2018.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/27/2018] [Accepted: 10/21/2018] [Indexed: 01/03/2023] Open
Abstract
C-ion radiotherapy is applied to pancreatic carcinoma in the abdominal cavity. The FGF1/CPP-C chimeric protein has an intracellular signaling mode. FGF1/CPP-C protects against C-ion-induced intestinal damage. FGF1/CPP-C inhibits the proliferation and metastasis of pancreatic carcinoma cells. FGF1/CPP-C may be useful for C-ion radiotherapy against pancreatic cancer.
Background and purpose Carbon ion (C-ion) beams are concentrated to irradiate pancreatic carcinoma in the upper abdomen; however, this radiotherapy potentially causes adverse reactions in the gastrointestinal tract. FGF1 is a candidate radioprotector for radiation-induced intestinal damage, but may promote the malignancy of pancreatic cancer. An FGF1/CPP-C chimeric protein was created to enhance the intracellular signaling mode of FGF1 instead of FGFR signaling. The present study investigated the effects of FGF1/CPP-C on the intestinal adverse reactions of C-ion radiotherapy as well as its influence on the malignancy of pancreatic cancer. Materials and methods FGF1/CPP-C was administered intraperitoneally to BALB/c mice without heparin 12 h before total body irradiation (TBI) with low-LET C-ion (17 keV/μm) at 6–8 Gy. Several radioprotective effects were examined in the jejunum. The invasion and migration of the human pancreatic carcinoma cell lines MIAPaCa-2 and PANC-1 were assessed using Boyden chambers after cultures with FGF1/CPP-C. Results The FGF1/CPP-C treatment promoted crypt survival after C-ion irradiation at 7–8 Gy significantly more than the FGF1 treatment. FGF1/CPP-C also inhibited C-ion radiotherapy-induced apoptosis and reduced γH2AX foci in crypt cells more than FGF1. However, FGF1/CPP-C inhibited the downstream signaling pathways of FGFRs and suppressed the activation of cell-cycle regulatory molecules in the intestine until 4 h after TBI. Furthermore, IEC6 cells were arrested in G2M after cultures with FGF1/CPP-C or FGF1, suggesting that DNA repair after irradiation is promoted by FGF1/CPP-C-induced G2M arrest. In contrast, FGF1/CPP-C appeared to be internalized into MIAPaCa-2 and PANC-1 cells more efficiently than FGF1. Therefore, FGF1/CPP-C reduced the in vitro proliferation, invasion, and migration of MIAPaCa-2 and PANC-1 cells significantly more than FGF1 through the cellular internalization of FGF1. Conclusion These results suggest that the intracellular signaling mode of FGF1/CPP-C attenuates the intestinal adverse effects of C-ion radiotherapy without enhancing the malignancy of pancreatic carcinoma.
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Affiliation(s)
- Mitsuko Kawano
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Taichi Miura
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Mayumi Fujita
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Sachiko Koike
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Kaori Imadome
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Atsuko Ishikawa
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Takeshi Yasuda
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Toru Imamura
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan.,School of Bioscience and Biotechnology, Tokyo University of Technology, Hachioji, Japan
| | - Takashi Imai
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Fumiaki Nakayama
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
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23
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Ludwig N, Kusumoto T, Galindo C, Peaupardin P, Pin S, Renault JP, Muller D, Yamauchi T, Kodaira S, Barillon R, Raffy Q. Radiolysis of phenylalanine in solution with Bragg-Peak energy protons. RADIAT MEAS 2018. [DOI: 10.1016/j.radmeas.2018.07.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Calcitriol and Calcidiol Can Sensitize Melanoma Cells to Low⁻LET Proton Beam Irradiation. Int J Mol Sci 2018; 19:ijms19082236. [PMID: 30065179 PMCID: PMC6122082 DOI: 10.3390/ijms19082236] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/19/2018] [Accepted: 07/27/2018] [Indexed: 12/17/2022] Open
Abstract
Proton beam irradiation promises therapeutic utility in the management of uveal melanoma. Calcitriol (1,25(OH)2D3)—the biologically active metabolite of vitamin D3—and its precursor, calcidiol (25(OH)D3), exert pleiotropic effects on melanoma cells. The aim of the study was to evaluate the effect of both calcitriol and calcidiol on melanoma cell proliferation and their response to proton beam irradiation. Three melanoma cell lines (human SKMEL-188 and hamster BHM Ma and BHM Ab), pre-treated with 1,25(OH)2D3 or 25(OH)D3 at graded concentrations (0, 10, 100 nM), were irradiated with 0–5 Gy and then cultured in vitro. Growth curves were determined by counting the cell number every 24 h up to 120 h, which was used to calculate surviving fractions. The obtained survival curves were analysed using two standard models: linear-quadratic and multi-target single hit. Calcitriol inhibited human melanoma proliferation at 10 nM, while only calcidiol inhibited proliferation of hamster lines at 10 and 100 nM doses. Treatment with either 1,25(OH)2D3 or 25(OH)D3 radio sensitized melanoma cells to low doses of proton beam radiation. The strength of the effect increased with the concentration of vitamin D3. Our data suggest that vitamin D3 may be an adjuvant that modifies proton beam efficiency during melanoma therapy.
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25
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Endo S, Fujita M, Yamada S, Imadome K, Nakayama F, Isozaki T, Yasuda T, Imai T, Matsubara H. Fra‑1 enhances the radioresistance of colon cancer cells to X‑ray or C‑ion radiation. Oncol Rep 2018; 39:1112-1118. [PMID: 29399696 PMCID: PMC5802033 DOI: 10.3892/or.2018.6223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/12/2018] [Indexed: 12/14/2022] Open
Abstract
Fos-related antigen 1 (Fra-1) has roles in a variety of cell functions, including cell proliferation, differentiation, transformation, and invasiveness, and it is upregulated in various cancers. We investigated the role of Fra-1 in cellular radioresistance using cells of two human colorectal cancer cell lines, SW620 and SW480. We found that SW620 cells are more sensitive than SW480 cells at doses greater than 6 Gy for X-ray or 3 Gy for carbon-ion (C-ion) radiation. Fra-1 expression tended to be decreased by the radiation in a dose-dependent manner in both cell lines; of note, a greater reduction of Fra-1 expression was observed in SW620 cells, especially at 6 Gy of X-ray or 3 Gy of C-ion irradiation, than in SW480 cells, indicating a possible association between Fra-1 downregulation and cellular radiosensitivity. Knockdown of Fra-1 in SW480 cells significantly increased the radiosensitivity to X-ray or C-ion radiation. On the other hand, overexpression of Fra-1 in SW620 cells significantly enhanced the radioresistance to C-ion radiation, suggesting a role of Fra-1 in radioresistance. Furthermore, we found that downregulation of Fra-1 protein in irradiated SW620 cells was regulated via protein degradation through a proteasome-dependent pathway. Overall, our results indicate a role of Fra-1 in radioresistance to both X-ray and C-ion radiation for colorectal cancer cell lines.
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Affiliation(s)
- Satoshi Endo
- Department of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba 260‑8670, Japan
| | - Mayumi Fujita
- Department of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan
| | - Shigeru Yamada
- Hospital of The National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Japan
| | - Kaori Imadome
- Department of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan
| | - Fumiaki Nakayama
- Department of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan
| | - Tetsuro Isozaki
- Department of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba 260‑8670, Japan
| | - Takeshi Yasuda
- Department of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan
| | - Takashi Imai
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Japan
| | - Hisahiro Matsubara
- Department of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba 260‑8670, Japan
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26
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Almahwasi A, Jeynes J, Bradley D, Regan P. The fate of radiation induced giant-nucleated cells of human skin fibroblasts. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2017.02.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Jasińska-Konior K, Pochylczuk K, Czajka E, Michalik M, Romanowska-Dixon B, Swakoń J, Urbańska K, Elas M. Proton beam irradiation inhibits the migration of melanoma cells. PLoS One 2017; 12:e0186002. [PMID: 29016654 PMCID: PMC5634624 DOI: 10.1371/journal.pone.0186002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 09/22/2017] [Indexed: 12/12/2022] Open
Abstract
Purpose In recent years experimental data have indicated that low-energy proton beam radiation might induce a difference in cellular migration in comparison to photons. We therefore set out to compare the effect of proton beam irradiation and X-rays on the survival and long-term migratory properties of two cell lines: uveal melanoma Mel270 and skin melanoma BLM. Materials and methods Cells treated with either proton beam or X-rays were analyzed for their survival using clonogenic assay and MTT test. Long-term migratory properties were assessed with time-lapse monitoring of individual cell movements, wound test and transpore migration, while the expression of the related proteins was measured with western blot. Results Exposure to proton beam and X-rays led to similar survival but the quality of the cell colonies was markedly different. More paraclones with a low proliferative activity and fewer highly-proliferative holoclones were found after proton beam irradiation in comparison to X-rays. At 20 or 40 days post-irradiation, migratory capacity was decreased more by proton beam than by X-rays. The beta-1-integrin level was decreased in Mel270 cells after both types of radiation, while vimentin, a marker of EMT, was increased in BLM cells only. Conclusions We conclude that proton beam irradiation induced long-term inhibition of cellular motility, as well as changes in the level of beta-1 integrin and vimentin. If confirmed, the change in the quality, but not in the number of colonies after proton beam irradiation might favor tumor growth inhibition after fractionated proton therapy.
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Affiliation(s)
| | - Katarzyna Pochylczuk
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Cracow, Poland
| | - Elżbieta Czajka
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Cracow, Poland
| | - Marta Michalik
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Cracow, Poland
| | - Bożena Romanowska-Dixon
- Department of Ophthalmology and Ophthalmic Oncology, Jagiellonian University Medical College, Cracow, Poland
| | - Jan Swakoń
- Institute of Nuclear Physics, PAS, Cracow, Poland
| | - Krystyna Urbańska
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Cracow, Poland
| | - Martyna Elas
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Cracow, Poland
- * E-mail:
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28
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Cirrone GAP, Cuttone G, Raffaele L, Salamone V, Avitabile T, Privitera G, Spatola C, Amico AG, Larosa G, Leanza R, Margarone D, Milluzzo G, Patti V, Petringa G, Romano F, Russo A, Russo A, Sabini MG, Schillaci F, Scuderi V, Valastro LM. Clinical and Research Activities at the CATANA Facility of INFN-LNS: From the Conventional Hadrontherapy to the Laser-Driven Approach. Front Oncol 2017; 7:223. [PMID: 28971066 PMCID: PMC5609572 DOI: 10.3389/fonc.2017.00223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/01/2017] [Indexed: 01/16/2023] Open
Abstract
The CATANA proton therapy center was the first Italian clinical facility making use of energetic (62 MeV) proton beams for the radioactive treatment of solid tumors. Since the date of the first patient treatment in 2002, 294 patients have been successful treated whose majority was affected by choroidal and iris melanomas. In this paper, we report on the current clinical and physical status of the CATANA facility describing the last dosimetric studies and reporting on the last patient follow-up results. The last part of the paper is dedicated to the description of the INFN-LNS ongoing activities on the realization of a beamline for the transport of laser-accelerated ion beams for future applications. The ELIMED (ELI-Beamlines MEDical and multidisciplinary applications) project is introduced and the main scientific aspects will be described.
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Affiliation(s)
- Giuseppe A. P. Cirrone
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Giacomo Cuttone
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Luigi Raffaele
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- Azienda Ospedaliero Universitaria Policlinico Vittorio Emanuele, Presidio Gaspare Rodolico, Catania, Italy
| | - Vincenzo Salamone
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- Azienda Ospedaliero Universitaria Policlinico Vittorio Emanuele, Presidio Gaspare Rodolico, Catania, Italy
| | - Teresio Avitabile
- Azienda Ospedaliero Universitaria Policlinico Vittorio Emanuele, Presidio Gaspare Rodolico, Catania, Italy
| | - Giuseppe Privitera
- Azienda Ospedaliero Universitaria Policlinico Vittorio Emanuele, Presidio Gaspare Rodolico, Catania, Italy
| | - Corrado Spatola
- Azienda Ospedaliero Universitaria Policlinico Vittorio Emanuele, Presidio Gaspare Rodolico, Catania, Italy
| | - Antonio G. Amico
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Giuseppina Larosa
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Renata Leanza
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Daniele Margarone
- ELI-Beamlines Project, Institute of Physics ASCR, v.v.i. (FZU), Prague, Czechia
| | - Giuliana Milluzzo
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Valeria Patti
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- Medical Physics Section, Cannizzaro Hospital, Catania, Italy
| | - Giada Petringa
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Francesco Romano
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- National Physical Laboratory, Acoustic and Ionizing Radiation Division, Middlesex, United Kingdom
| | - Andrea Russo
- Azienda Ospedaliero Universitaria Policlinico Vittorio Emanuele, Presidio Gaspare Rodolico, Catania, Italy
| | - Antonio Russo
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Maria G. Sabini
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- Medical Physics Section, Cannizzaro Hospital, Catania, Italy
| | - Francesco Schillaci
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
| | - Valentina Scuderi
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- ELI-Beamlines Project, Institute of Physics ASCR, v.v.i. (FZU), Prague, Czechia
| | - Lucia M. Valastro
- Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (INFN-LNS), Catania, Italy
- Medical Physics Section, Cannizzaro Hospital, Catania, Italy
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29
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Yamauchi Y, Safi S, Orschiedt L, Gardyan A, Brons S, Rieber J, Nicolay NH, Huber PE, Eichhorn M, Dienemann H, Herth FJF, Weber KJ, Debus J, Hoffmann H, Rieken S. Low-dose photon irradiation induces invasiveness through the SDF-1α/CXCR4 pathway in malignant mesothelioma cells. Oncotarget 2017; 8:68001-68011. [PMID: 28978091 PMCID: PMC5620231 DOI: 10.18632/oncotarget.19134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 06/10/2017] [Indexed: 11/28/2022] Open
Abstract
Background Low-dose photon irradiation has repeatedly been suspected to increase a risk of promoting local recurrence of disease or even systemic dissemination. The purpose of this study was to investigate the motility of malignant pleural mesothelioma (MPM) cell lines after low-doses of photon irradiation and to elucidate the mechanism of the detected phenotype. Methods H28 and H226 MPM cells were examined in clonogenic survival experiments and migration assays with and without various doses of photon and carbon ion irradiation. C-X-C chemokine receptor type 4 (CXCR4), SDF-1α, β1 integrin, α3 integrin, and α5 integrin expressions were analyzed by quantitative FACS analysis, ELISA and western blots. Apoptosis was assessed via Annexin-V-staining. Results The migration of MPM cells was stimulated by both fetal bovine serum and by stromal cell-derived factor 1α (SDF-1α). Low doses of photon irradiation (1 Gy and 2 Gy) suppressed clonogenicity, but promoted migration of both H28 and H226 cells through the SDF-1α/CXCR4 pathway. Hypermigration was inhibited by the administration of CXCR4 antagonist, AMD3100. In contrast, corresponding doses of carbon ion irradiation (0.3 Gy and 1 Gy) suppressed clonogenicity, but did not promote MPM cell migration. Conclusion Our findings suggest that the co-administration of photon irradiation and the CXCR4-antagonist AMD3100 or the use of carbon ions instead of photons may be possible solutions to reduce the risk of locoregional tumor recurrence after radiotherapy for MPM.
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Affiliation(s)
- Yoshikane Yamauchi
- Department of Thoracic Surgery, Thorax Clinic, Heidelberg University, Heidelberg, Germany
| | - Seyer Safi
- Department of Thoracic Surgery, Thorax Clinic, Heidelberg University, Heidelberg, Germany
| | - Lena Orschiedt
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Adriane Gardyan
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Department of Molecular and Radiation Oncology, German Cancer Research Center (dkfz), Heidelberg, Germany
| | - Stephan Brons
- Heidelberg Ion Treatment Facility (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Juliane Rieber
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion Treatment Facility (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Nils H Nicolay
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion Treatment Facility (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Department of Molecular and Radiation Oncology, German Cancer Research Center (dkfz), Heidelberg, Germany
| | - Peter E Huber
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,Department of Molecular and Radiation Oncology, German Cancer Research Center (dkfz), Heidelberg, Germany
| | - Martin Eichhorn
- Department of Thoracic Surgery, Thorax Clinic, Heidelberg University, Heidelberg, Germany
| | - Hendrik Dienemann
- Department of Thoracic Surgery, Thorax Clinic, Heidelberg University, Heidelberg, Germany
| | - Felix J F Herth
- Pneumology and Critical Care Medicine, Thorax Clinic, Heidelberg University, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRCH), Heidelberg, Germany, Member of the German Center for Lung Research (DZL)
| | - Klaus-Josef Weber
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion Treatment Facility (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion Treatment Facility (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
| | - Hans Hoffmann
- Department of Thoracic Surgery, Thorax Clinic, Heidelberg University, Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, University Hospital of Heidelberg, Heidelberg, Germany.,Heidelberg Ion Treatment Facility (HIT), Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
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30
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Carbon Ion Radiotherapy: A Review of Clinical Experiences and Preclinical Research, with an Emphasis on DNA Damage/Repair. Cancers (Basel) 2017; 9:cancers9060066. [PMID: 28598362 PMCID: PMC5483885 DOI: 10.3390/cancers9060066] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 05/21/2017] [Accepted: 06/06/2017] [Indexed: 12/31/2022] Open
Abstract
Compared to conventional photon-based external beam radiation (PhXRT), carbon ion radiotherapy (CIRT) has superior dose distribution, higher linear energy transfer (LET), and a higher relative biological effectiveness (RBE). This enhanced RBE is driven by a unique DNA damage signature characterized by clustered lesions that overwhelm the DNA repair capacity of malignant cells. These physical and radiobiological characteristics imbue heavy ions with potent tumoricidal capacity, while having the potential for simultaneously maximally sparing normal tissues. Thus, CIRT could potentially be used to treat some of the most difficult to treat tumors, including those that are hypoxic, radio-resistant, or deep-seated. Clinical data, mostly from Japan and Germany, are promising, with favorable oncologic outcomes and acceptable toxicity. In this manuscript, we review the physical and biological rationales for CIRT, with an emphasis on DNA damage and repair, as well as providing a comprehensive overview of the translational and clinical data using CIRT.
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Isozaki T, Fujita M, Yamada S, Imadome K, Shoji Y, Yasuda T, Nakayama F, Imai T, Matsubara H. Effects of carbon ion irradiation and X-ray irradiation on the ubiquitylated protein accumulation. Int J Oncol 2016; 49:144-52. [PMID: 27175736 PMCID: PMC4902063 DOI: 10.3892/ijo.2016.3504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 03/26/2016] [Indexed: 02/07/2023] Open
Abstract
C-ion radiotherapy is associated with improved local control and survival in several types of tumors. Although C-ion irradiation is widely reported to effectively induce DNA damage in tumor cells, the effects of irradiation on proteins, such as protein stability or degradation in response to radiation stress, remain unknown. We aimed to compare the effects of C-ion and X-ray irradiation focusing on the cellular accumulation of ubiquitylated proteins. Cells from two human colorectal cancer cell lines, SW620 and SW480, were subjected to C-ion or X-ray irradiation and determination of ubiquitylated protein levels. High levels of ubiquitylated protein accumulation were observed in the C-ion-irradiated SW620 with a peak at 3 Gy; the accumulation was significantly lower in the X-ray-irradiated SW620 at all doses. Enhanced levels of ubiquitylated proteins were also detected in C-ion or X-ray-irradiated SW480, however, those levels were significantly lower than the peak detected in the C-ion-irradiated SW620. The levels of irradiation-induced ubiquitylated proteins decreased in a time-dependent manner, suggesting that the proteins were eliminated after irradiation. The treatment of C-ion-irradiated SW620 with a proteasome inhibitor (epoxomicin) enhanced the cell killing activity. The accumulated ubiquitylated proteins were co-localized with γ-H2AX, and with TP53BP1, in C-ion-irradiated SW620, indicating C-ion-induced ubiquitylated proteins may have some functions in the DNA repair system. Overall, we showed C-ion irradiation strongly induces the accumulation of ubiquitylated proteins in SW620. These characteristics may play a role in improving the therapeutic ratio of C-ion beams; blocking the clearance of ubiquitylated proteins may enhance sensitivity to C-ion radiation.
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Affiliation(s)
- Tetsuro Isozaki
- Department of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Mayumi Fujita
- Advanced Radiation Biology Research Program, National Institute of Radiological Sciences, Chiba, Japan
| | - Shigeru Yamada
- Research Center Hospital, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan
| | - Kaori Imadome
- Advanced Radiation Biology Research Program, National Institute of Radiological Sciences, Chiba, Japan
| | - Yoshimi Shoji
- Advanced Radiation Biology Research Program, National Institute of Radiological Sciences, Chiba, Japan
| | - Takeshi Yasuda
- Radiation Emergency Medicine Research Program, Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba, Japan
| | - Fumiaki Nakayama
- Advanced Radiation Biology Research Program, National Institute of Radiological Sciences, Chiba, Japan
| | - Takashi Imai
- Advanced Radiation Biology Research Program, National Institute of Radiological Sciences, Chiba, Japan
| | - Hisahiro Matsubara
- Department of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
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Suetens A, Konings K, Moreels M, Quintens R, Verslegers M, Soors E, Tabury K, Grégoire V, Baatout S. Higher Initial DNA Damage and Persistent Cell Cycle Arrest after Carbon Ion Irradiation Compared to X-irradiation in Prostate and Colon Cancer Cells. Front Oncol 2016; 6:87. [PMID: 27148479 PMCID: PMC4830044 DOI: 10.3389/fonc.2016.00087] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 03/28/2016] [Indexed: 12/12/2022] Open
Abstract
The use of charged-particle beams, such as carbon ions, is becoming a more and more attractive treatment option for cancer therapy. Given the precise absorbed dose-localization and an increased biological effectiveness, this form of therapy is much more advantageous compared to conventional radiotherapy, and is currently being used for treatment of specific cancer types. The high ballistic accuracy of particle beams deposits the maximal dose to the tumor, while damage to the surrounding healthy tissue is limited. In order to better understand the underlying mechanisms responsible for the increased biological effectiveness, we investigated the DNA damage and repair kinetics and cell cycle progression in two p53 mutant cell lines, more specifically a prostate (PC3) and colon (Caco-2) cancer cell line, after exposure to different radiation qualities. Cells were irradiated with various absorbed doses (0, 0.5, and 2 Gy) of accelerated 13C-ions at the Grand Accélérateur National d’Ions Lourds facility (Caen, France) or with X-rays (0, 0.1, 0.5, 1, 2, and 5 Gy). Microscopic analysis of DNA double-strand breaks showed dose-dependent increases in γ-H2AX foci numbers and foci occupancy after exposure to both types of irradiation, in both cell lines. However, 24 h after exposure, residual damage was more pronounced after lower doses of carbon ion irradiation compared to X-irradiation. Flow cytometric analysis showed that carbon ion irradiation induced a permanent G2/M arrest in PC3 cells at lower doses (2 Gy) compared to X-rays (5 Gy), while in Caco-2 cells the G2/M arrest was transient after irradiation with X-rays (2 and 5 Gy) but persistent after exposure to carbon ions (2 Gy).
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Affiliation(s)
- Annelies Suetens
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
- Radiation Oncology Department, Center for Molecular Imaging, Radiotherapy and Oncology, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCL), Bruxelles, Belgium
| | - Katrien Konings
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
- Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Marjan Moreels
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
- *Correspondence: Marjan Moreels,
| | - Roel Quintens
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Mieke Verslegers
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Els Soors
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Kevin Tabury
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Vincent Grégoire
- Radiation Oncology Department, Center for Molecular Imaging, Radiotherapy and Oncology, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCL), Bruxelles, Belgium
| | - Sarah Baatout
- Expert Group for Molecular and Cellular Biology, Radiobiology Unit, Belgian Nuclear Research Centre (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
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Marshall TI, Chaudhary P, Michaelidesová A, Vachelová J, Davídková M, Vondráček V, Schettino G, Prise KM. Investigating the Implications of a Variable RBE on Proton Dose Fractionation Across a Clinical Pencil Beam Scanned Spread-Out Bragg Peak. Int J Radiat Oncol Biol Phys 2016; 95:70-77. [PMID: 27084630 PMCID: PMC4838672 DOI: 10.1016/j.ijrobp.2016.02.029] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/27/2016] [Accepted: 02/08/2016] [Indexed: 01/19/2023]
Abstract
Purpose To investigate the clinical implications of a variable relative biological effectiveness (RBE) on proton dose fractionation. Using acute exposures, the current clinical adoption of a generic, constant cell killing RBE has been shown to underestimate the effect of the sharp increase in linear energy transfer (LET) in the distal regions of the spread-out Bragg peak (SOBP). However, experimental data for the impact of dose fractionation in such scenarios are still limited. Methods and Materials Human fibroblasts (AG01522) at 4 key depth positions on a clinical SOBP of maximum energy 219.65 MeV were subjected to various fractionation regimens with an interfraction period of 24 hours at Proton Therapy Center in Prague, Czech Republic. Cell killing RBE variations were measured using standard clonogenic assays and were further validated using Monte Carlo simulations and parameterized using a linear quadratic formalism. Results Significant variations in the cell killing RBE for fractionated exposures along the proton dose profile were observed. RBE increased sharply toward the distal position, corresponding to a reduction in cell sparing effectiveness of fractionated proton exposures at higher LET. The effect was more pronounced at smaller doses per fraction. Experimental survival fractions were adequately predicted using a linear quadratic formalism assuming full repair between fractions. Data were also used to validate a parameterized variable RBE model based on linear α parameter response with LET that showed considerable deviations from clinically predicted isoeffective fractionation regimens. Conclusions The RBE-weighted absorbed dose calculated using the clinically adopted generic RBE of 1.1 significantly underestimates the biological effective dose from variable RBE, particularly in fractionation regimens with low doses per fraction. Coupled with an increase in effective range in fractionated exposures, our study provides an RBE dataset that can be used by the modeling community for the optimization of fractionated proton therapy.
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Affiliation(s)
- Thomas I Marshall
- Centre for Cancer Research and Cell Biology, Queen's University, Belfast, UK
| | - Pankaj Chaudhary
- Centre for Cancer Research and Cell Biology, Queen's University, Belfast, UK
| | - Anna Michaelidesová
- Department of Radiation Dosimetry, Nuclear Physics Institute CAS, Prague, Czech Republic; Proton Therapy Center Czech, Prague, Czech Republic; Department of Dosimetry and Application of Ionizing Radiation, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Jana Vachelová
- Department of Radiation Dosimetry, Nuclear Physics Institute CAS, Prague, Czech Republic
| | - Marie Davídková
- Department of Radiation Dosimetry, Nuclear Physics Institute CAS, Prague, Czech Republic
| | | | | | - Kevin M Prise
- Centre for Cancer Research and Cell Biology, Queen's University, Belfast, UK
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Riquier H, Abel D, Wera AC, Heuskin AC, Genard G, Lucas S, Michiels C. Effects of Alpha Particle and Proton Beam Irradiation as Putative Cross-Talk between A549 Cancer Cells and the Endothelial Cells in a Co-Culture System. Cancers (Basel) 2015; 7:481-502. [PMID: 25794049 PMCID: PMC4381270 DOI: 10.3390/cancers7010481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 03/10/2015] [Indexed: 01/28/2023] Open
Abstract
Background: High-LET ion irradiation is being more and more often used to control tumors in patients. Given that tumors are now considered as complex organs composed of multiple cell types that can influence radiosensitivity, we investigated the effects of proton and alpha particle irradiation on the possible radioprotective cross-talk between cancer and endothelial cells. Materials and Methods: We designed new irradiation chambers that allow co-culture study of cells irradiated with a particle beam. A549 lung carcinoma cells and endothelial cells (EC) were exposed to 1.5 Gy of proton beam or 1 and 2 Gy of alpha particles. Cell responses were studied by clonogenic assays and cell cycle was analyzed by flow cytometry. Gene expression studies were performed using Taqman low density array and by RT-qPCR. Results: A549 cells and EC displayed similar survival fraction and they had similar cell cycle distribution when irradiated alone or in co-culture. Both types of irradiation induced the overexpression of genes involved in cell growth, inflammation and angiogenesis. Conclusions: We set up new irradiation chamber in which two cell types were irradiated together with a particle beam. We could not show that tumor cells and endothelial cells were able to protect each other from particle irradiation. Gene expression changes were observed after particle irradiation that could suggest a possible radioprotective inter-cellular communication between the two cell types but further investigations are needed to confirm these results.
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Affiliation(s)
- Hélène Riquier
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
| | - Denis Abel
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
| | | | | | - Géraldine Genard
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
| | - Stéphane Lucas
- LARN-PMR, NARILIS, University of Namur, Namur 5000, Belgium.
| | - Carine Michiels
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
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Hirakawa H, Fujisawa H, Masaoka A, Noguchi M, Hirayama R, Takahashi M, Fujimori A, Okayasu R. The combination of Hsp90 inhibitor 17AAG and heavy-ion irradiation provides effective tumor control in human lung cancer cells. Cancer Med 2015; 4:426-36. [PMID: 25582113 PMCID: PMC4380968 DOI: 10.1002/cam4.377] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 08/29/2014] [Accepted: 09/29/2014] [Indexed: 01/12/2023] Open
Abstract
Hsp90 inhibitors have become well-studied antitumor agents for their selective property against tumors versus normal cells. The combined treatment of Hsp90 inhibitor and conventional photon radiation also showed more effective tumor growth delay than radiation alone. However, little is known regarding the combined treatment of Hsp90 inhibitor and heavy-ion irradiation. In this study, SQ5 human lung tumor cells were used in vitro for clonogenic cell survival and in vivo for tumor growth delay measurement using a mouse xenograft model after 17-allylamino-17-demethoxygeldanamycin (17AAG) pretreatment and carbon ion irradiation. Repair of DNA double strand breaks (DSBs) was also assessed along with expressions of DSB repair-related proteins. Cell cycle analysis after the combined treatment was also performed. The combined treatment of 17AAG and carbon ions revealed a promising treatment option in both in vitro and in vivo studies. One likely cause of this effectiveness was shown to be the inhibition of homologous recombination repair by 17AAG. The more intensified G2 cell cycle delay was also associated with the combined treatment when compared with carbon ion treatment alone. Our findings indicate that the combination of Hsp90 inhibition and heavy-ion irradiation provides a new effective therapeutic alternative for treatment of solid tumors.
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Affiliation(s)
- Hirokazu Hirakawa
- International Open Laboratory and Research Center for Charged Particle Therapy/Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba, 263-8555, Japan
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Kondo Y, Kimura O, Shimosegawa T. Radiation therapy has been shown to be adaptable for various stages of hepatocellular carcinoma. World J Gastroenterol 2015; 21:94-101. [PMID: 25574082 PMCID: PMC4284364 DOI: 10.3748/wjg.v21.i1.94] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/12/2014] [Accepted: 06/26/2014] [Indexed: 02/06/2023] Open
Abstract
In addition to surgical procedures, radiofrequency ablation is commonly used for the treatment of hepatocellular carcinomas (HCCs) of limited size and number. Transcatheter arterial chemoembolization (TACE), using iodized poppy seed oil, Lipiodol and anticancer drugs, has been actively performed for the treatment of unresectable HCC, particularly in Asian countries. Recently, Sorafenib become available for advanced HCCs when the liver is still sufficiently functional. Sorafenib is an oral multikinase inhibitor with antiproliferative and antiangiogenic effects. However, the effect of sorafenib seems to be inadequate to control the progression of HCC. Radiation therapy (RT) for HCC has a potential role across all stages of HCC. However, RT is generally not considered an option in HCC consensus documents or national guidelines, primarily because of insufficient supporting evidence. However, the method of RT has much improved because of advances in technology. Moreover, combined treatment of RT plus other treatments (TACE, sorafenib and chemotherapy etc.) has become one of the alternative therapies for HCC. Therefore, we should understand the various kinds of RT available for HCC. In this review, we focus on various kinds of external beam radiation therapy.
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Du Y, Zhang J, Zheng Q, Li M, Liu Y, Zhang B, Liu B, Zhang H, Miao G. Heavy ion and X-ray irradiation alter the cytoskeleton and cytomechanics of cortical neurons. Neural Regen Res 2014; 9:1129-37. [PMID: 25206772 PMCID: PMC4146101 DOI: 10.4103/1673-5374.135315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2014] [Indexed: 12/26/2022] Open
Abstract
Heavy ion beams with high linear energy transfer exhibit more beneficial physical and biological performance than conventional X-rays, thus improving the potential of this type of radiotherapy in the treatment of cancer. However, these two radiotherapy modalities both cause inevitable brain injury. The objective of this study was to evaluate the effects of heavy ion and X-ray irradiation on the cytoskeleton and cytomechanical properties of rat cortical neurons, as well as to determine the potential mechanism of neuronal injury after irradiation. Cortical neurons from 30 new-born mice were irradiated with heavy ion beams at a single dose of 2 Gy and X-rays at a single dose of 4 Gy; subsequent evaluation of their effects were carried out at 24 hours after irradiation. An immunofluorescence assay showed that after irradiation with both the heavy ion beam and X-rays, the number of primary neurons was significantly decreased, and there was evidence of apoptosis. Radiation-induced neuronal injury was more apparent after X-irradiation. Under atomic force microscopy, the neuronal membrane appeared rough and neuronal rigidity had increased. These cell changes were more apparent following exposure to X-rays. Our findings indicated that damage caused by heavy ion and X-ray irradiation resulted in the structural distortion and rearrangement of the cytoskeleton, and affected the cytomechanical properties of the cortical neurons. Moreover, this radiation injury to normal neurons was much severer after irradiation with X-rays than after heavy ion beam irradiation.
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Affiliation(s)
- Yuting Du
- School of Stomatology, Lanzhou University, Lanzhou, Gansu Province, China ; School of Nuclear Science and Technology, Lanzhou University, Lanzhou, Gansu Province, China
| | - Jie Zhang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, Gansu Province, China ; School of Stomatology, Lanzhou University, Lanzhou, Gansu Province, China
| | - Qian Zheng
- School of Stomatology, Lanzhou University, Lanzhou, Gansu Province, China
| | - Mingxin Li
- School of Stomatology, Lanzhou University, Lanzhou, Gansu Province, China
| | - Yang Liu
- Department of Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province, China
| | - Baoping Zhang
- School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu Province, China
| | - Bin Liu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, Gansu Province, China ; School of Stomatology, Lanzhou University, Lanzhou, Gansu Province, China
| | - Hong Zhang
- Department of Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province, China
| | - Guoying Miao
- Gansu Provincial Hospital, Lanzhou, Gansu Province, China
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Jin X, Liu Y, Ye F, Liu X, Furusawa Y, Wu Q, Li F, Zheng X, Dai Z, Li Q. Role of autophagy in high linear energy transfer radiation-induced cytotoxicity to tumor cells. Cancer Sci 2014; 105:770-8. [PMID: 24731006 PMCID: PMC4317928 DOI: 10.1111/cas.12422] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 04/09/2014] [Accepted: 04/10/2014] [Indexed: 12/19/2022] Open
Abstract
Heavy-ion radiotherapy has a potential advantage over conventional radiotherapy due to improved dose distribution and a higher biological effectiveness in cancer therapy. However, there is a little information currently available on the cellular and molecular basis for heavy-ion irradiation-induced cell death. Autophagy, as a novel important target to improve anticancer therapy, has recently attracted considerable attention. In this study, the effect of autophagy induced by high linear energy transfer (LET) carbon ions was examined in various tumor cell lines. To our knowledge, our study is the first to reveal that high-LET carbon ions could induce autophagy in various tumor cells effectively, and the autophagic level in the irradiated cells increased in a dose- and LET-dependent manner. The ability of carbon ions to inhibit the activation of the PI3K/Akt pathway rose with increasing their LET. Moreover, modulation of autophagy in tumor cells could modify their sensitivity to high-LET radiation, and inhibiting autophagy accelerated apoptotic cell death, resulting in an increase in radiosensitivity. Our data imply that targeting autophagy might enhance the effectiveness of heavy-ion radiotherapy.
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Affiliation(s)
- Xiaodong Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, China
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Schlaff CD, Krauze A, Belard A, O'Connell JJ, Camphausen KA. Bringing the heavy: carbon ion therapy in the radiobiological and clinical context. Radiat Oncol 2014; 9:88. [PMID: 24679134 PMCID: PMC4002206 DOI: 10.1186/1748-717x-9-88] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 03/16/2014] [Indexed: 12/23/2022] Open
Abstract
Radiotherapy for the treatment of cancer is undergoing an evolution, shifting to the use of heavier ion species. For a plethora of malignancies, current radiotherapy using photons or protons yields marginal benefits in local control and survival. One hypothesis is that these malignancies have acquired, or are inherently radioresistant to low LET radiation. In the last decade, carbon ion radiotherapy facilities have slowly been constructed in Europe and Asia, demonstrating favorable results for many of the malignancies that do poorly with conventional radiotherapy. However, from a radiobiological perspective, much of how this modality works in overcoming radioresistance, and extending local control and survival are not yet fully understood. In this review, we will explain from a radiobiological perspective how carbon ion radiotherapy can overcome the classical and recently postulated contributors of radioresistance (α/β ratio, hypoxia, cell proliferation, the tumor microenvironment and metabolism, and cancer stem cells). Furthermore, we will make recommendations on the important factors to consider, such as anatomical location, in the future design and implementation of clinical trials. With the existing data available we believe that the expansion of carbon ion facilities into the United States is warranted.
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Affiliation(s)
| | | | | | | | - Kevin A Camphausen
- Radiation Oncology Branch, National Cancer Institute, 10 Center Drive Magnuson Clinical Center Room B3B100, Bethesda, MD 20892, USA.
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Antiproton induced DNA damage: proton like in flight, carbon-ion like near rest. Sci Rep 2014; 3:1770. [PMID: 23640660 PMCID: PMC3642660 DOI: 10.1038/srep01770] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 04/12/2013] [Indexed: 02/01/2023] Open
Abstract
Biological validation of new radiotherapy modalities is essential to understand their therapeutic potential. Antiprotons have been proposed for cancer therapy due to enhanced dose deposition provided by antiproton-nucleon annihilation. We assessed cellular DNA damage and relative biological effectiveness (RBE) of a clinically relevant antiproton beam. Despite a modest LET (~19 keV/μm), antiproton spread out Bragg peak (SOBP) irradiation caused significant residual γ-H2AX foci compared to X-ray, proton and antiproton plateau irradiation. RBE of ~1.48 in the SOBP and ~1 in the plateau were measured and used for a qualitative effective dose curve comparison with proton and carbon-ions. Foci in the antiproton SOBP were larger and more structured compared to X-rays, protons and carbon-ions. This is likely due to overlapping particle tracks near the annihilation vertex, creating spatially correlated DNA lesions. No biological effects were observed at 28–42 mm away from the primary beam suggesting minimal risk from long-range secondary particles.
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Kedracka-Krok S, Jankowska U, Elas M, Sowa U, Swakon J, Cierniak A, Olko P, Romanowska-Dixon B, Urbanska K. Proteomic analysis of proton beam irradiated human melanoma cells. PLoS One 2014; 9:e84621. [PMID: 24392146 PMCID: PMC3879347 DOI: 10.1371/journal.pone.0084621] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 11/26/2013] [Indexed: 12/19/2022] Open
Abstract
Proton beam irradiation is a form of advanced radiotherapy providing superior distributions of a low LET radiation dose relative to that of photon therapy for the treatment of cancer. Even though this clinical treatment has been developing for several decades, the proton radiobiology critical to the optimization of proton radiotherapy is far from being understood. Proteomic changes were analyzed in human melanoma cells treated with a sublethal dose (3 Gy) of proton beam irradiation. The results were compared with untreated cells. Two-dimensional electrophoresis was performed with mass spectrometry to identify the proteins. At the dose of 3 Gy a minimal slowdown in proliferation rate was seen, as well as some DNA damage. After allowing time for damage repair, the proteomic analysis was performed. In total 17 protein levels were found to significantly (more than 1.5 times) change: 4 downregulated and 13 upregulated. Functionally, they represent four categories: (i) DNA repair and RNA regulation (VCP, MVP, STRAP, FAB-2, Lamine A/C, GAPDH), (ii) cell survival and stress response (STRAP, MCM7, Annexin 7, MVP, Caprin-1, PDCD6, VCP, HSP70), (iii) cell metabolism (TIM, GAPDH, VCP), and (iv) cytoskeleton and motility (Moesin, Actinin 4, FAB-2, Vimentin, Annexin 7, Lamine A/C, Lamine B). A substantial decrease (2.3 x) was seen in the level of vimentin, a marker of epithelial to mesenchymal transition and the metastatic properties of melanoma.
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Affiliation(s)
- Sylwia Kedracka-Krok
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
- Malopolska Centre of Biotechnology, Krakow, Poland
| | - Urszula Jankowska
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
- Malopolska Centre of Biotechnology, Krakow, Poland
| | - Martyna Elas
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Urszula Sowa
- Institute of Nuclear Physics, PAS, Kraków, Poland
| | - Jan Swakon
- Institute of Nuclear Physics, PAS, Kraków, Poland
| | - Agnieszka Cierniak
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Pawel Olko
- Institute of Nuclear Physics, PAS, Kraków, Poland
| | - Bozena Romanowska-Dixon
- Department of Ophthalmology and Ophthalmic Oncology, Jagiellonian University Medical College, Kraków, Poland
| | - Krystyna Urbanska
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
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Chida Y, Takagi K, Terada S. Establishment of a mammalian cell line suitable for industrial production of recombinant protein using mutations induced by high-energy beam radiation. Cytotechnology 2013; 65:955-65. [PMID: 23660994 DOI: 10.1007/s10616-013-9572-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 04/16/2013] [Indexed: 10/26/2022] Open
Abstract
Mammalian cells are extensively used for production of biopharmaceuticals. Most cells used in industry have infinite proliferative capacity, which provides a high number of cells and corresponding productivity. However, infinite cells will continue to multiply even after cell density reaches sufficient levels. This excess proliferation aggravates the culture environment and induces low productivity. Therefore, after cell density reaches sufficient levels, downregulation of proliferation would prevent such aggravation and extend the culture period and improve productivity. To realize such suitable proliferation, we aimed to establish a novel cell line whose proliferation was spontaneously downregulated after reaching a sufficient population level. Mutagenesis using high-energy beam irradiation was used. CHO-DP12 cells were irradiated with 2.5 Gy X-rays and screened with hydroxyurea and 5-fluorouracil to eliminate any cells multiplying after confluence and to concentrate desired mutants. One clone was established and named CHO-M1. Cell cycle analysis indicated that CHO-M1 cells had a similar cell cycle profile in the exponential growth phase, but cells rapidly accumulated in G1 phase just before confluence and did not progress through the cell cycle. This suggested that until confluence, proliferation of CHO-M1 was similar to parental CHO, but after confluence, it was inhibited and under G1 arrest. The specific antibody production rate of CHO-M1 was kept high, even after confluence, while that of parental CHO was drastically decreased in stationary phase. These results suggest that the desired cell line was successfully established and that high-energy beam irradiation could be an efficient mutagenic technique for breeding industrial cells.
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Affiliation(s)
- Yasuhito Chida
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui, 910-8507, Japan
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Girdhani S, Sachs R, Hlatky L. Biological Effects of Proton Radiation: What We Know and Don't Know. Radiat Res 2013; 179:257-72. [DOI: 10.1667/rr2839.1] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hanot M, Boivin A, Malésys C, Beuve M, Colliaux A, Foray N, Douki T, Ardail D, Rodriguez-Lafrasse C. Glutathione depletion and carbon ion radiation potentiate clustered DNA lesions, cell death and prevent chromosomal changes in cancer cells progeny. PLoS One 2012. [PMID: 23185232 PMCID: PMC3502420 DOI: 10.1371/journal.pone.0044367] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Poor local control and tumor escape are of major concern in head-and-neck cancers treated by conventional radiotherapy or hadrontherapy. Reduced glutathione (GSH) is suspected of playing an important role in mechanisms leading to radioresistance, and its depletion should enable oxidative stress insult, thereby modifying the nature of DNA lesions and the subsequent chromosomal changes that potentially lead to tumor escape. This study aimed to highlight the impact of a GSH-depletion strategy (dimethylfumarate, and l-buthionine sulfoximine association) combined with carbon ion or X-ray irradiation on types of DNA lesions (sparse or clustered) and the subsequent transmission of chromosomal changes to the progeny in a radioresistant cell line (SQ20B) expressing a high endogenous GSH content. Results are compared with those of a radiosensitive cell line (SCC61) displaying a low endogenous GSH level. DNA damage measurements (γH2AX/comet assay) demonstrated that a transient GSH depletion in resistant SQ20B cells potentiated the effects of irradiation by initially increasing sparse DNA breaks and oxidative lesions after X-ray irradiation, while carbon ion irradiation enhanced the complexity of clustered oxidative damage. Moreover, residual DNA double-strand breaks were measured whatever the radiation qualities. The nature of the initial DNA lesions and amount of residual DNA damage were similar to those observed in sensitive SCC61 cells after both types of irradiation. Misrepaired or unrepaired lesions may lead to chromosomal changes, estimated in cell progeny by the cytome assay. Both types of irradiation induced aberrations in nondepleted resistant SQ20B and sensitive SCC61 cells. The GSH-depletion strategy prevented the transmission of aberrations (complex rearrangements and chromosome break or loss) in radioresistant SQ20B only when associated with carbon ion irradiation. A GSH-depleting strategy combined with hadrontherapy may thus have considerable advantage in the care of patients, by minimizing genomic instability and improving the local control.
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Affiliation(s)
- Maïté Hanot
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
- Fondation Synergie Lyon Cancer, Lyon, France
| | - Anthony Boivin
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
| | - Céline Malésys
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
| | - Michaël Beuve
- Institut de Physique Nucléaire de Lyon, UMR 5822, Université Lyon 1, IN2P3/CNRS, Villeurbanne, France
| | - Anthony Colliaux
- Institut de Physique Nucléaire de Lyon, UMR 5822, Université Lyon 1, IN2P3/CNRS, Villeurbanne, France
| | - Nicolas Foray
- Institut National de la Santé et de la Recherche Médicale, U836, Groupe de Radiobiologie, Faculté de Médecine de Lyon-Sud, Oullins, France
| | - Thierry Douki
- Commissariat à l'Energie Atomique (CEA), Service de Chimie Inorganique et Biologique UMR-E 3 (CEA-UJF), Laboratoire Lésions des Acides Nucléiques, Grenoble, France
| | - Dominique Ardail
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
| | - Claire Rodriguez-Lafrasse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, EMR3738, Faculté de Médecine Lyon-Sud, Oullins, France
- Unité Médicale d'Oncologie Moléculaire et Transfert, Hospices Civils Lyon, Centre de Biologie Sud, Centre Hospitalier Lyon-Sud, Pierre Bénite, France
- * E-mail:
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Girdhani S, Lamont C, Hahnfeldt P, Abdollahi A, Hlatky L. Proton Irradiation Suppresses Angiogenic Genes and Impairs Cell Invasion and Tumor Growth. Radiat Res 2012; 178:33-45. [DOI: 10.1667/rr2724.1] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Swati Girdhani
- Center of Cancer Systems Biology, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, Massachusetts 02135
| | - Clare Lamont
- Center of Cancer Systems Biology, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, Massachusetts 02135
| | - Philip Hahnfeldt
- Center of Cancer Systems Biology, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, Massachusetts 02135
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Sminia P, Mayer R. External beam radiotherapy of recurrent glioma: radiation tolerance of the human brain. Cancers (Basel) 2012; 4:379-99. [PMID: 24213316 PMCID: PMC3712703 DOI: 10.3390/cancers4020379] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 03/23/2012] [Accepted: 03/29/2012] [Indexed: 12/17/2022] Open
Abstract
Malignant gliomas relapse in close proximity to the resection site, which is the postoperatively irradiated volume. Studies on re-irradiation of glioma were examined regarding radiation-induced late adverse effects (i.e., brain tissue necrosis), to obtain information on the tolerance dose and treatment volume of normal human brain tissue. The studies were analyzed using the linear-quadratic model to express the re-irradiation tolerance in cumulative equivalent total doses when applied in 2 Gy fractions (EQD2cumulative). Analysis shows that the EQD2cumulative increases from conventional re-irradiation series to fractionated stereotactic radiotherapy (FSRT) to LINAC-based stereotactic radiosurgery (SRS). The mean time interval between primary radiotherapy and the re-irradiation course was shortened from 30 months for conventional re-irradiation to 17 and 10 months for FSRT and SRS, respectively. Following conventional re-irradiation, radiation-induced normal brain tissue necrosis occurred beyond an EQD2cumulative around 100 Gy. With increasing conformality of therapy, the smaller the treatment volume is, the higher the radiation dose that can be tolerated. Despite the dose escalation, no increase in late normal tissue toxicity was reported. On basis of our analysis, the use of particle therapy in the treatment of recurrent gliomas, because of the optimized physical dose distribution in the tumour and surrounding healthy brain tissue, should be considered for future clinical trials.
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Affiliation(s)
- Peter Sminia
- Department of Radiation Oncology, Radiobiology Section, VU University Medical Center, De Boelelaan 1117, P.O. Box 7057, Amsterdam, The Netherlands
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +31-20-444-1574; Fax: +31-20-444-0410
| | - Ramona Mayer
- EBG MedAustron GmbH., Viktor Kaplan-Strasse 2, A-2700, Wiener Neustadt, Austria; E-Mails: (R.M.)
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Moskvin V, Cheng CW, Das IJ. Pitfalls of tungsten multileaf collimator in proton beam therapy. Med Phys 2012; 38:6395-406. [PMID: 22149823 DOI: 10.1118/1.3658655] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Particle beam therapy is associated with significant startup and operational cost. Multileaf collimator (MLC) provides an attractive option to improve the efficiency and reduce the treatment cost. A direct transfer of the MLC technology from external beam radiation therapy is intuitively straightforward to proton therapy. However, activation, neutron production, and the associated secondary cancer risk in proton beam should be an important consideration which is evaluated. METHODS Monte Carlo simulation with FLUKA particle transport code was applied in this study for a number of treatment models. The authors have performed a detailed study of the neutron generation, ambient dose equivalent [H∗(10)], and activation of a typical tungsten MLC and compared with those obtained from a brass aperture used in a typical proton therapy system. Brass aperture and tungsten MLC were modeled by absorber blocks in this study, representing worst-case scenario of a fully closed collimator. RESULTS With a tungsten MLC, the secondary neutron dose to the patient is at least 1.5 times higher than that from a brass aperture. The H∗(10) from a tungsten MLC at 10 cm downstream is about 22.3 mSv/Gy delivered to water phantom by noncollimated 200 MeV beam of 20 cm diameter compared to 14 mSv/Gy for the brass aperture. For a 30-fraction treatment course, the activity per unit volume in brass aperture reaches 5.3 × 10⁴ Bq cm(-3) at the end of the last treatment. The activity in brass decreases by a factor of 380 after 24 h, additional 6.2 times after 40 days of cooling, and is reduced to background level after 1 yr. Initial activity in tungsten after 30 days of treating 30 patients per day is about 3.4 times higher than in brass that decreases only by a factor of 2 after 40 days and accumulates to 1.2 × 10⁶ Bq cm(-3) after a full year of operation. The daily utilization of the MLC leads to buildup of activity with time. The overall activity continues to increase due to (179)Ta with a half-life of 1.82 yr and thus require prolonged storage for activity cooling. The H∗(10) near the patient side of the tungsten block is about 100 μSv/h and is 27 times higher at the upstream side of the block. This would lead to an accumulated dose for therapists in a year that may exceed occupational maximum permissible dose (50 mSv/yr). The value of H∗(10) at the upstream surface of the tungsten block is about 220 times higher than that of the brass. CONCLUSIONS MLC is an efficient way for beam shaping and overall cost reduction device in proton therapy. However, based on this study, tungsten seems to be not an optimal material for MLC in proton beam therapy. Usage of tungsten MLC in clinic may create unnecessary risks associated with the secondary neutrons and induced radioactivity for patients and staff depending on the patient load. A careful selection of material for manufacturing of an optimal MLC for proton therapy is thus desired.
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Affiliation(s)
- Vadim Moskvin
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA.
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Choi J, Kang JO. Basics of particle therapy II: relative biological effectiveness. Radiat Oncol J 2012; 30:1-13. [PMID: 23120738 PMCID: PMC3475957 DOI: 10.3857/roj.2012.30.1.1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 11/23/2011] [Accepted: 12/02/2011] [Indexed: 01/20/2023] Open
Abstract
In the previous review, the physical aspect of heavy particles, with a focus on the carbon beam was introduced. Particle beam therapy has many potential advantages for cancer treatment without increasing severe side effects in normal tissue, these kinds of radiation have different biologic characteristics and have advantages over using conventional photon beam radiation during treatment. The relative biological effectiveness (RBE) is used for many biological, clinical endpoints among different radiation types and is the only convenient way to transfer the clinical experience in radiotherapy with photons to another type of radiation therapy. However, the RBE varies dependent on the energy of the beam, the fractionation, cell types, oxygenation status, and the biological endpoint studied. Thus this review describes the concerns about RBE related to particle beam to increase interests of the Korean radiation oncologists' society.
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Affiliation(s)
- Jinhyun Choi
- Department of Radiation Oncology, Kyung Hee University School of Medicine, Seoul, Korea
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Fujita M, Otsuka Y, Imadome K, Endo S, Yamada S, Imai T. Carbon-ion radiation enhances migration ability and invasiveness of the pancreatic cancer cell, PANC-1, in vitro. Cancer Sci 2012; 103:677-83. [PMID: 22171596 DOI: 10.1111/j.1349-7006.2011.02190.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Pancreatic cancer is an aggressive disease that responds poorly to conventional photon radiotherapy. Carbon-ion (C-ion) radiation has advantages compared with conventional radiotherapy, because it enables more accurate dose distribution and more efficient tumor cell killing. To elucidate the effects of local radiotherapy on the characteristics of metastatic tumors, it is necessary to understand the nature of motility in irradiated tumor cells; this will, in turn, facilitate the development of effective strategies to counter tumor cell motility, which can be used in combination with radiotherapy. The aim of the present study was to examine the invasiveness of pancreatic cancer cells exposed to C-ion irradiation. We found that C-ion irradiation suppressed the migration of MIAPaCa-2, BxPC-3 and AsPC-1; diminished the invasiveness of MIAPaCa-2; and tended to reduce the invasion of BxPC-3 and AsPC-1. However, C-ion irradiation increased the invasiveness of PANC-1 through the activation of plasmin and urokinase-type plasiminogen activator. Administration of serine protease inhibitor (SerPI) alone failed to reduce C-ion-induced PANC-1 invasiveness, whereas the combination of SerPI and Rho-associated coiled-coil forming protein kinase (ROCK) inhibitor suppressed it. Furthermore, PANC-1 showed mesenchymal-amoeboid transition when we treated with SerPI alone. In conclusion, C-ion irradiation is effective in suppressing the invasive potential of several pancreatic tumor cell lines, but not PANC-1; this is the first study showing that C-ion irradiation induces the invasive potential of a tumor cell line. Further in vivo studies are required to examine the therapeutic effectiveness of radiotherapy combined with inhibitors of both mesenchymal and amoeboid modes of tumor cell motility.
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Affiliation(s)
- Mayumi Fujita
- Advanced Radiation Biology Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan
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Schneider U. Modeling the risk of secondary malignancies after radiotherapy. Genes (Basel) 2011; 2:1033-49. [PMID: 24710304 PMCID: PMC3927608 DOI: 10.3390/genes2041033] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 11/01/2011] [Accepted: 11/04/2011] [Indexed: 12/16/2022] Open
Abstract
In developed countries, more than half of all cancer patients receive radiotherapy at some stage in the management of their disease. However, a radiation-induced secondary malignancy can be the price of success if the primary cancer is cured or at least controlled. Therefore, there is increasing concern regarding radiation-related second cancer risks in long-term radiotherapy survivors and a corresponding need to be able to predict cancer risks at high radiation doses. Of particular interest are second cancer risk estimates for new radiation treatment modalities such as intensity modulated radiotherapy, intensity modulated arc-therapy, proton and heavy ion radiotherapy. The long term risks from such modern radiotherapy treatment techniques have not yet been determined and are unlikely to become apparent for many years, due to the long latency time for solid tumor induction. Most information on the dose-response of radiation-induced cancer is derived from data on the A-bomb survivors who were exposed to γ-rays and neutrons. Since, for radiation protection purposes, the dose span of main interest is between zero and one Gy, the analysis of the A-bomb survivors is usually focused on this range. With increasing cure rates, estimates of cancer risk for doses larger than one Gy are becoming more important for radiotherapy patients. Therefore in this review, emphasis was placed on doses relevant for radiotherapy with respect to radiation induced solid cancer. Simple radiation protection models should be used only with extreme care for risk estimates in radiotherapy, since they are developed exclusively for low dose. When applied to scatter radiation, such models can predict only a fraction of observed second malignancies. Better semi-empirical models include the effect of dose fractionation and represent the dose-response relationships more accurately. The involved uncertainties are still huge for most of the organs and tissues. A major reason for this is that the underlying processes of the induction of carcinoma and sarcoma are not well known. Most uncertainties are related to the time patterns of cancer induction, the population specific dependencies and to the organ specific cancer induction rates. For radiotherapy treatment plan optimization these factors are irrelevant, as a treatment plan comparison is performed for a patient of specific age, sex, etc. If a treatment plan is compared relative to another one only the shape of the dose-response curve (the so called risk-equivalent dose) is of importance and errors can be minimized.
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Affiliation(s)
- Uwe Schneider
- Vetsuisse Faculty, University of Zürich, Zürich 8057, Switzerland.
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