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More efficient induction of genotoxicity by high-LET Fe-particle radiation than low-LET X-ray radiation at low doses. RADIATION MEDICINE AND PROTECTION 2022. [DOI: 10.1016/j.radmp.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Nie M, Chen L, Zhang J, Qiu X. Pure proton therapy for skull base chordomas and chondrosarcomas: A systematic review of clinical experience. Front Oncol 2022; 12:1016857. [PMID: 36505855 PMCID: PMC9732011 DOI: 10.3389/fonc.2022.1016857] [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: 08/11/2022] [Accepted: 10/31/2022] [Indexed: 11/27/2022] Open
Abstract
Background Skull base chordoma and chondrosarcoma are exceptionally rare bone tumors with high propensity for local recurrence. Different postoperative radiation modalities are often used to improve the clinical efficacy. Proton therapy (PT) might be among the most promising ones because of the unique ballistic characteristics of high-energy particles. However, previous meta-analysis often included studies with combined radiation techniques. No systematic review to date has directly analyzed the survival and toxicity of pure PT for these two types of malignancies. Methods By following the PRISMA guidelines, a systematic search of three databases was conducted. Articles were screened and data were extracted according to a prespecified scheme. R 4.2.0 software was used to conduct the meta-analysis. Normal distribution test was used for the incidence rate of each subgroup. Results A total of seven studies involving 478 patients were included in this analysis. The quality of included articles ranged from moderate to high quality. All patients were histopathologically diagnosed with chordoma or chondrosarcoma, and the follow-up time of the cohort ranged from 21 to 61.7 months. For PT planning, the median target volume ranged from 15 cc to 40 cc, and the administered median dose varied from 63 to 78.4 GyRBE at 1.8-2.0 GyRBE per fraction. The 1-, 2-, 3-, 5-, and 7-year local control and overall survival rates were 100%, 93%, 87%, 78%, and 68%, and 100%, 99%, 89%, 85%, and 68%, respectively. The late grade 3 or higher toxicities were reported in only two involved articles. Conclusions Until now, medical centers worldwide have exerted PT to improve outcomes of skull base chordomas and chondrosarcomas. PT not combined with other radiation modalities showed favorable local control and survival with a low incidence of severe radiation-induced toxicities, which manifests promising clinical benefits. However, high-quality evidence is still limited, requiring future clinical trials and prospective studies in selected patients.
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Affiliation(s)
- Menglin Nie
- Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Liying Chen
- Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jing Zhang
- Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xiaoguang Qiu
- Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China,*Correspondence: Xiaoguang Qiu,
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Deng ZY, Hu Z, Feng HJ. Dynamic interplay between thionine and DNA under carbon ion irradiation: a real-time first-principles study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 51:025101. [PMID: 36327460 DOI: 10.1088/1361-648x/ac9fff] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Understanding the interactions between deoxyribonucleic acid (DNA) and photosensitizer under ion irradiation benefits the development of aptasensors, DNA biosensors and cancer diagnosis. Using real-time time-depended density functional theory, by simulating high-energy C ion passing through DNA with poly(dG)·poly(dC) sequence and that with embedded thionine (3,7-diamino-5-phenothiazinium, TH), we compared the electronic stopping power (ESP), evolution of the structure and charge, and absorption spectrum. TH inserting leads the increase in space charge density, a larger electron de-excitation and a larger ESP, but the speed corresponding to the maximum ESP is almost same. When C ion passes through TH-DNA, the structure of TH slightly changes and there still exists noncovalent interaction between TH and DNA, but the absorption coefficient depends on the electron occupied state of TH when the ion passes through. These results indicate that at low radiation doses, TH still can be a DNA detector, although its response wavelength and intensity have been slightly changed, and provide a theoretical reference to improve the possible application of phenothiazine dye in DNA biosensor under ion irradiation.
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Affiliation(s)
- Zun-Yi Deng
- School of Physics, Northwest University, Xi'an 710127, People's Republic of China
| | - Zhihua Hu
- School of Physics, Northwest University, Xi'an 710127, People's Republic of China
| | - Hong-Jian Feng
- School of Physics, Northwest University, Xi'an 710127, People's Republic of China
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Wang J, Han Y, Li Y, Zhang F, Cai M, Zhang X, Chen J, Ji C, Ma J, Xu F. Targeting Tumor Physical Microenvironment for Improved Radiotherapy. SMALL METHODS 2022; 6:e2200570. [PMID: 36116123 DOI: 10.1002/smtd.202200570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Radiotherapy has led to important clinical advances; existing cancer radiotherapy resistance is one remaining major challenge. Recently, biophysical cues in the tumor microenvironment (TME) have been regarded as the new hallmarks of cancer, playing pivotal roles in various cancer behaviors and treatment responses, including radiotherapy resistance. With recent advances in micro/nanotechnologies and functional biomaterials, radiotherapy exerts great influence on biophysical cues in TME, which, in turn, significantly affect the response to radiotherapy. Besides, various strategies have emerged that target biophysical cues in TME, to potentially enhance radiotherapy efficacy. Therefore, this paper reviews the four biophysical cues (i.e., extracellular matrix (ECM) microarchitecture, ECM stiffness, interstitial fluid pressure, and solid stress) that may play important roles in radiotherapy resistance, their possible mechanisms for inducing it, and their change after radiotherapy. The emerging therapeutic strategies targeting the biophysical microenvironment, to explore the mechanism of radiotherapy resistance and develop effective strategies to revert it for improved treatment efficacy are further summarized.
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Affiliation(s)
- Jin Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yulong Han
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Yuan Li
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Fengping Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Mengjiao Cai
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Xinyue Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Jie Chen
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Chao Ji
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Jinlu Ma
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Feng Xu
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, P. R. China
- MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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Navin PJ, Olson MC, Mendiratta-Lala M, Hallemeier CL, Torbenson MS, Venkatesh SK. Imaging Features in the Liver after Stereotactic Body Radiation Therapy. Radiographics 2022; 42:2131-2148. [PMID: 36240077 DOI: 10.1148/rg.220084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Historically, radiation therapy was not considered in treatment of liver tumors owing to the risk of radiation-induced liver disease. However, development of highly conformed radiation treatments such as stereotactic body radiation therapy (SBRT) has increased use of radiation therapy in the liver. SBRT is indicated in treatment of primary and metastatic liver tumors with outcomes comparable to those of other local therapies, especially in treatment of hepatocellular carcinoma. After SBRT, imaging features of the tumor and surrounding background hepatic parenchyma demonstrate a predictable pattern immediately after treatment and during follow-up. The goals of SBRT are to deliver a lethal radiation dose to the targeted liver tumor and to minimize radiation dose to normal liver parenchyma and other adjacent organs. Evaluation of tumor response after SBRT centers on changes in size and enhancement; however, these changes are often delayed secondary to the underlying physiologic effects of radiation. Knowledge of the underlying pathophysiologic mechanisms of SBRT should allow better understanding of the typical imaging features in detection of tumor response and avoid misinterpretation from common pitfalls and atypical imaging findings. Imaging features of radiation-induced change in the surrounding liver parenchyma are characterized by a focal liver reaction that can potentially be mistaken for no response or recurrence of tumor. Knowledge of the pattern and chronology of this phenomenon may allay any uncertainty in assessment of tumor response. Other pitfalls related to fiducial marker placement or combination therapies are important to recognize. The authors review the basic principles of SBRT and illustrate post-SBRT imaging features of treated liver tumors and adjacent liver parenchyma with a focus on avoiding pitfalls in imaging evaluation of response. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Patrick J Navin
- From the Departments of Radiology (P.J.N., M.C.O., S.K.V.), Radiation Oncology (C.L.H.), and Pathology (M.S.T.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, University of Michigan, Ann Arbor, Mich (M.M.L.)
| | - Michael C Olson
- From the Departments of Radiology (P.J.N., M.C.O., S.K.V.), Radiation Oncology (C.L.H.), and Pathology (M.S.T.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, University of Michigan, Ann Arbor, Mich (M.M.L.)
| | - Mishal Mendiratta-Lala
- From the Departments of Radiology (P.J.N., M.C.O., S.K.V.), Radiation Oncology (C.L.H.), and Pathology (M.S.T.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, University of Michigan, Ann Arbor, Mich (M.M.L.)
| | - Christopher L Hallemeier
- From the Departments of Radiology (P.J.N., M.C.O., S.K.V.), Radiation Oncology (C.L.H.), and Pathology (M.S.T.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, University of Michigan, Ann Arbor, Mich (M.M.L.)
| | - Michael S Torbenson
- From the Departments of Radiology (P.J.N., M.C.O., S.K.V.), Radiation Oncology (C.L.H.), and Pathology (M.S.T.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, University of Michigan, Ann Arbor, Mich (M.M.L.)
| | - Sudhakar K Venkatesh
- From the Departments of Radiology (P.J.N., M.C.O., S.K.V.), Radiation Oncology (C.L.H.), and Pathology (M.S.T.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, University of Michigan, Ann Arbor, Mich (M.M.L.)
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Bolognesi P, Avaldi L. Photoelectron-photoion(s) coincidence studies of molecules of biological interest. Phys Chem Chem Phys 2022; 24:22356-22370. [PMID: 36124990 DOI: 10.1039/d2cp03079a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoelectron-photoion(s) coincidence, PEPICO, experiments with synchrotron radiation have become one of the most powerful tools to investigate dissociative photoionization thanks to their selectivity. In this paper their application to the study of molecular species of biological interest in the gas phase is reviewed. Some applications of PEPICO to the study of potential radiosensitizers, amino acids and small peptides and opportunities offered by the advent of novel methods for the production of beams of these molecules are discussed.
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Affiliation(s)
- P Bolognesi
- CNR-Istituto di Struttura della Materia, Area della Ricerca di Roma 1, CP 10 00015 Monterotondo Scalo, Italy.
| | - L Avaldi
- CNR-Istituto di Struttura della Materia, Area della Ricerca di Roma 1, CP 10 00015 Monterotondo Scalo, Italy.
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Barcellini A, Dusi V, Mirandola A, Ronchi S, Riva G, Dal Mas F, Massaro M, Vitolo V, Ciocca M, Rordorf R, Orlandi E. The impact of particle radiotherapy on the functioning of cardiac implantable electronic devices: a systematic review of in vitro and in vivo studies according to PICO criteria. LA RADIOLOGIA MEDICA 2022; 127:1046-1058. [PMID: 35871428 PMCID: PMC9508006 DOI: 10.1007/s11547-022-01520-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 06/20/2022] [Indexed: 12/24/2022]
Abstract
The number of oncological patients who may benefit from proton beam radiotherapy (PBT) or carbon ion radiotherapy (CIRT), overall referred to as particle radiotherapy (RT), is expected to strongly increase in the next future, as well as the number of cardiological patients requiring cardiac implantable electronic devices (CIEDs). The management of patients with a CIED requiring particle RT deserves peculiar attention compared to those undergoing conventional photon beam RT, mostly due to the potential generation of secondary neutrons by particle beams interactions. Current consensus documents recommend managing these patients as being at intermediate/high risk of RT-induced device malfunctioning regardless of the dose on the CIED and the beam delivery method used, despite the last one significantly affects secondary neutrons generation (very limited neutrons production with active scanning as opposed to the passive scattering technique). The key issues for the current review were expressed in four questions according to the Population, Intervention, Control, Outcome criteria. Three in vitro and five in vivo studies were included. Based on the available data, PBT and CIRT with active scanning have a limited potential to interfere with CIED that has only emerged from in vitro study so far, while a significant potential for neutron-related, not severe, CIED malfunctions (resets) was consistently reported in both clinical and in vitro studies with passive scattering.
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Affiliation(s)
- Amelia Barcellini
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Veronica Dusi
- Division of Cardiology, Department of Medical Sciences, AOU Città Della Salute e Della Scienza, University of Turin, Turin, Italy.
| | - Alfredo Mirandola
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Sara Ronchi
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Giulia Riva
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Francesca Dal Mas
- Department of Management, Ca' Foscari University of Venice, Venice, Italy
| | - Maurizio Massaro
- Department of Management, Ca' Foscari University of Venice, Venice, Italy
| | - Viviana Vitolo
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Mario Ciocca
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Roberto Rordorf
- Coronary Care Unit and Laboratory of Clinical and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Ester Orlandi
- Radiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
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Pei Y, Ning R, Hu W, Li P, Zhang Z, Deng Y, Hong Z, Sun Y, Guo X, Zhang Q. Carbon Ion Radiotherapy Induce Metabolic Inhibition After Functional Imaging-Guided Simultaneous Integrated Boost for Prostate Cancer. Front Oncol 2022; 12:845583. [PMID: 35936669 PMCID: PMC9354483 DOI: 10.3389/fonc.2022.845583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
PurposeAs local recurrence remains a challenge and the advantages of the simultaneous integrated boost (SIB) technique have been validated in photon radiotherapy, we applied the SIB technique to CIRT. The aim was to investigate the metabolomic changes of the CIRT with concurrent androgen deprivation therapy (ADT) in localized prostate cancer (PCa) and the unique metabolic effect of the SIB technique.Material and MethodsThis study enrolled 24 pathologically confirmed PCa patients. All patients went through CIRT with concurrent ADT. The gross target volume (GTV) boost was defined as positive lesions on both 68Ga-PSMA PET/CT and mpMRI images. Urine samples collected before and after CIRT were analyzed by the Q-TOF UPLC-MS/MS system. R platform and MetDNA were used for peak detection and identification. Statistical analysis and metabolic pathway analysis were performed on Metaboanalyst.ResultsThe metabolite profiles were significantly altered after CIRT. The most significantly altered metabolic pathway is PSMA participated alanine, aspartate and glutamate metabolism. Metabolites in this pathway showed a trend to be better suppressed in the SIB group. A total of 11 identified metabolites were significantly discriminative between two groups and all of them were better down-regulated in the SIB group. Meanwhile, among these metabolites, three metabolites in DNA damage and repair related purine metabolism were down-regulated to a greater extent in the SIB group.ConclusionMetabolic dysfunction was one of the typical characteristics of PCa. CIRT with ADT showed a powerful inhibition of PCa metabolism, especially in PSMA participated metabolic pathway. The SIB CIRT showed even better performance on down-regulation of most metabolism than uniform-dose-distribution CIRT. Meanwhile, the SIB CIRT also showed its unique superiority to inhibit purine metabolism. PSMA PET/CT guided SIB CIRT showed its potentials to further benefit PCa patients.
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Affiliation(s)
- Yulei Pei
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
| | - Renli Ning
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
| | - Wei Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
| | - Ping Li
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Zhenshan Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
| | - Yong Deng
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Zhengshan Hong
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Yun Sun
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- *Correspondence: Qing Zhang, ; Xiaomao Guo, ; Yun Sun,
| | - Xiaomao Guo
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- Department of Research and Development, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- *Correspondence: Qing Zhang, ; Xiaomao Guo, ; Yun Sun,
| | - Qing Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy lon Radiation Therapy, Shanghai, China
- *Correspondence: Qing Zhang, ; Xiaomao Guo, ; Yun Sun,
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Mares V, Farah J, De Saint-Hubert M, Domański S, Domingo C, Dommert M, Kłodowska M, Krzempek K, Kuć M, Martínez-Rovira I, Michaś E, Mojżeszek N, Murawski Ł, Ploc O, Romero-Expósito M, Tisi M, Trompier F, Van Hoey O, Van Ryckeghem L, Wielunski M, Harrison RM, Stolarczyk L, Olko P. Neutron Radiation Dose Measurements in a Scanning Proton Therapy Room: Can Parents Remain Near Their Children During Treatment? Front Oncol 2022; 12:903706. [PMID: 35912238 PMCID: PMC9330633 DOI: 10.3389/fonc.2022.903706] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/16/2022] [Indexed: 11/15/2022] Open
Abstract
Purpose This study aims to characterize the neutron radiation field inside a scanning proton therapy treatment room including the impact of different pediatric patient sizes. Materials and Methods Working Group 9 of the European Radiation Dosimetry Group (EURADOS) has performed a comprehensive measurement campaign to measure neutron ambient dose equivalent, H*(10), at eight different positions around 1-, 5-, and 10-year-old pediatric anthropomorphic phantoms irradiated with a simulated brain tumor treatment. Several active detector systems were used. Results The neutron dose mapping within the gantry room showed that H*(10) values significantly decreased with distance and angular deviation with respect to the beam axis. A maximum value of about 19.5 µSv/Gy was measured along the beam axis at 1 m from the isocenter for a 10-year-old pediatric phantom at 270° gantry angle. A minimum value of 0.1 µSv/Gy was measured at a distance of 2.25 m perpendicular to the beam axis for a 1-year-old pediatric phantom at 140° gantry angle. The H*(10) dependence on the size of the pediatric patient was observed. At 270° gantry position, the measured neutron H*(10) values for the 10-year-old pediatric phantom were up to 20% higher than those measured for the 5-year-old and up to 410% higher than for the 1-year-old phantom, respectively. Conclusions Using active neutron detectors, secondary neutron mapping was performed to characterize the neutron field generated during proton therapy of pediatric patients. It is shown that the neutron ambient dose equivalent H*(10) significantly decreases with distance and angle with respect to the beam axis. It is reported that the total neutron exposure of a person staying at a position perpendicular to the beam axis at a distance greater than 2 m from the isocenter remains well below the dose limit of 1 mSv per year for the general public (recommended by the International Commission on Radiological Protection) during the entire treatment course with a target dose of up to 60 Gy. This comprehensive analysis is key for general neutron shielding issues, for example, the safe operation of anesthetic equipment. However, it also enables the evaluation of whether it is safe for parents to remain near their children during treatment to bring them comfort. Currently, radiation protection protocols prohibit the occupancy of the treatment room during beam delivery.
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Affiliation(s)
- Vladimir Mares
- Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
- *Correspondence: Vladimir Mares,
| | - Jad Farah
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Marijke De Saint-Hubert
- Belgian Nuclear Research Center, (SCK CEN), Institute for Environment, Health and Safety (EHS), Mol, Belgium
| | - Szymon Domański
- National Centre for Nuclear Research, Radiological Metrology and Biomedical Physics Division, Otwock-Świerk, Poland
| | - Carles Domingo
- Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Martin Dommert
- Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
| | - Magdalena Kłodowska
- Cambridge University Hospital National Health Service (NHS) Trust, Medical Physics, Cambridge, United Kingdom
| | - Katarzyna Krzempek
- Institute of Nuclear Physics, Polish Academy of Sciences, (IFJ PAN), Krakow, Poland
| | - Michał Kuć
- National Centre for Nuclear Research, Radiological Metrology and Biomedical Physics Division, Otwock-Świerk, Poland
| | | | - Edyta Michaś
- National Centre for Nuclear Research, Radiological Metrology and Biomedical Physics Division, Otwock-Świerk, Poland
| | - Natalia Mojżeszek
- Institute of Nuclear Physics, Polish Academy of Sciences, (IFJ PAN), Krakow, Poland
| | - Łukasz Murawski
- National Centre for Nuclear Research, Radiological Metrology and Biomedical Physics Division, Otwock-Świerk, Poland
| | - Ondrej Ploc
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences (CAS), Prague, Czechia
| | | | - Marco Tisi
- Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
| | - François Trompier
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Olivier Van Hoey
- Belgian Nuclear Research Center, (SCK CEN), Institute for Environment, Health and Safety (EHS), Mol, Belgium
| | - Laurent Van Ryckeghem
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Marek Wielunski
- Helmholtz Zentrum München, Institute of Radiation Medicine, Neuherberg, Germany
| | - Roger M. Harrison
- Faculty of Medical Sciences, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom
| | - Liliana Stolarczyk
- Institute of Nuclear Physics, Polish Academy of Sciences, (IFJ PAN), Krakow, Poland
- Danish Centre for Particle Therapy, Aarhus University Hospital (AUH), Aarhus, Denmark
| | - Pawel Olko
- Institute of Nuclear Physics, Polish Academy of Sciences, (IFJ PAN), Krakow, Poland
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Keall PJ, Brighi C, Glide-Hurst C, Liney G, Liu PZY, Lydiard S, Paganelli C, Pham T, Shan S, Tree AC, van der Heide UA, Waddington DEJ, Whelan B. Integrated MRI-guided radiotherapy - opportunities and challenges. Nat Rev Clin Oncol 2022; 19:458-470. [PMID: 35440773 DOI: 10.1038/s41571-022-00631-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2022] [Indexed: 12/25/2022]
Abstract
MRI can help to categorize tissues as malignant or non-malignant both anatomically and functionally, with a high level of spatial and temporal resolution. This non-invasive imaging modality has been integrated with radiotherapy in devices that can differentially target the most aggressive and resistant regions of tumours. The past decade has seen the clinical deployment of treatment devices that combine imaging with targeted irradiation, making the aspiration of integrated MRI-guided radiotherapy (MRIgRT) a reality. The two main clinical drivers for the adoption of MRIgRT are the ability to image anatomical changes that occur before and during treatment in order to adapt the treatment approach, and to image and target the biological features of each tumour. Using motion management and biological targeting, the radiation dose delivered to the tumour can be adjusted during treatment to improve the probability of tumour control, while simultaneously reducing the radiation delivered to non-malignant tissues, thereby reducing the risk of treatment-related toxicities. The benefits of this approach are expected to increase survival and quality of life. In this Review, we describe the current state of MRIgRT, and the opportunities and challenges of this new radiotherapy approach.
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Affiliation(s)
- Paul J Keall
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia.
| | - Caterina Brighi
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Carri Glide-Hurst
- Department of Human Oncology, University of Wisconsin, Madison, WI, USA
| | - Gary Liney
- Ingham Institute of Applied Medical Research, Sydney, New South Wales, Australia
| | - Paul Z Y Liu
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Suzanne Lydiard
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Chiara Paganelli
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
| | - Trang Pham
- Faculty of Medicine and Health, The University of New South Wales, Sydney, New South Wales, Australia
| | - Shanshan Shan
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Alison C Tree
- The Royal Marsden NHS Foundation Trust and the Institute of Cancer Research, London, UK
| | - Uulke A van der Heide
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - David E J Waddington
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Brendan Whelan
- ACRF Image X Institute, The University of Sydney, Sydney, New South Wales, Australia
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Eichkorn T, Karger CP, Brons S, Koerber SA, Mielke T, Haberer T, Debus J, Herfarth K. Results of a prospective randomized trial on long-term effectiveness of protons and carbon ions in prostate cancer: LEM I and α/β = 2 Gy overestimates the RBE. Radiother Oncol 2022; 173:223-230. [PMID: 35714806 DOI: 10.1016/j.radonc.2022.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 10/18/2022]
Abstract
AIM To analyze the long-term effectiveness of carbon ions relative to protons in the prospective randomized controlled ion prostate irradiation (IPI) trial. METHODS Effectiveness via PSA assessment in a randomized study on prostate irradiation with 20x3.3 Gy(RBE) protons versus carbon ions was analyzed in 92 patients. Proton RBE was based on a fixed RBE of 1.1 while the local effect model (LEM) I and an α/β = 2 Gy was used for carbon ions. The dose in the prostate was recalculated based on the delivered treatment plan using LEM I and LEM IV and different α/β values. RESULTS Five-year overall and progression free survival was 98% and 85% with protons and 91% and 50% with carbon ions, respectively, with the latter being unexpectedly low compared to Japanese carbon ion data and rather corresponding to a photon dose <72 Gy in 2 Gy fractions. According to LEM I and the applied α/β-value of 2 Gy, the applied carbon ion dose in 2 Gy(RBE) fractions (EQD2) was 87.46 Gy(RBE). Recalculations confirmed a strong dependence of RBE-weighted dose on the α/β ratio as well as on the RBE-model. CONCLUSION The data demonstrate a significant lower effectiveness of the calculated RBE-weighted dose in the carbon ion as compared to the proton arm. LEM I and an α/β = 2 Gy overestimates the RBE for carbon ions in prostate cancer treatment. Adjusting the biological dose calculation by using LEM I with α/β = 4 Gy could be a pragmatic way to safely escalate dose in carbon ion radiotherapy for prostate cancer.
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Affiliation(s)
- Tanja Eichkorn
- Department of Radiation Oncology, Heidelberg University Hospital, Germany; National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion Beam Therapy Center (HIT), Heidelberg, Germany.
| | - Christian P Karger
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany; Dept. of Medical Physics in Radiation Oncology, German Cancer Research Center, Heidelberg, Germany.
| | - Stephan Brons
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany.
| | - Stefan Alexander Koerber
- Department of Radiation Oncology, Heidelberg University Hospital, Germany; National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion Beam Therapy Center (HIT), Heidelberg, Germany.
| | - Thomas Mielke
- Department of Radiation Oncology, Heidelberg University Hospital, Germany; Heidelberg Ion Beam Therapy Center (HIT), Heidelberg, Germany.
| | - Thomas Haberer
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany; Heidelberg Ion Beam Therapy Center (HIT), Heidelberg, Germany.
| | - Juergen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Germany; National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology (E050), German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Ion Beam Therapy Center (HIT), Heidelberg, Germany; German Cancer Consortium (DKTK), Partner Site Heidelberg, German Cancer Research Center (DKFZ), Germany.
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Germany; National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Germany; National Center for Tumor Diseases (NCT), Heidelberg, Germany; Heidelberg Ion Beam Therapy Center (HIT), Heidelberg, Germany.
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Li H. Biological effectiveness and relative biological effectiveness of ion beams for in-vitro cell irradiation. Cancer Sci 2022; 113:2807-2813. [PMID: 35642350 PMCID: PMC9357665 DOI: 10.1111/cas.15446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/17/2022] [Accepted: 05/24/2022] [Indexed: 11/26/2022] Open
Abstract
Biological effectiveness and relative biological effectiveness are critical for proton and ion beam radiotherapy. However, the relationship between the two quantities and physical character of ion beams is not well established. By analyzing 1188 sets of in‐vitro cell irradiation experiments using ion beams ranging from protons to 238U, compiled by the Particle Irradiation Data Ensemble (PIDE) project, the biological effectiveness of the ion beams, with cell survival fractionation (SF) as the endpoint, was found to be dependent on the fluence and linear energy transfer (LET) of the ion beam. Consequently, the relative biological effectiveness of the ion beam to photon beam was also established as a function of LET. A common form of relationship among SF, fluence, and LET was found to be valid for all ion beam experiments. The close form relationship could be used for proton and ion beam radiotherapy applications.
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Affiliation(s)
- Heng Li
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, MD, USA
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Validation and testing of a novel pencil-beam model derived from Monte Carlo simulations in carbon-ion treatment planning for different scenarios. Phys Med 2022; 99:1-9. [PMID: 35576855 DOI: 10.1016/j.ejmp.2022.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The calculation ability of the newly-proposed accurate beam model, the double Gaussian-logistic (DG-L) model, was validated in both homogeneous and heterogeneous phantoms to provide helpful information for its future application in clinical carbon-ion treatment planning system (TPS). METHODS MatRad was used as the new algorithm test platform. Based on Monte Carlo (MC) method, the basic database in matRad was generated, then comparative dosimetric analyses between the single Gaussian (SG), double Gaussian (DG) and DG-L models against the MC recalculations were performed on the treatment plans of a cubic water phantom, a TG119 phantom and a liver patient scenario. Absolute dose differences, dose-volume histograms (DVHs) and global γ-index analyses derived from the treatment plans were evaluated. RESULTS Calculated with the DG-L model, the deviations of the target dose coverage (D95) for the cubic water phantom, the TG119 phantom and the liver patient case against the MC recalculations could be reduced from -2.5%, -4.6% and -6.4% to -0.3%, -2.0% and -4.5% respectively compared to the SG model, while the γ pass rates (3%/3mm) could be enhanced from 98.0%, 90.6% and 90.1% to 99.8%, 95.7% and 91.6%, respectively. The novel beam model also shows improved performance compared with the DG model, without substantially increasing the computation time. CONCLUSIONS The DG-L model could effectively improve the dose calculation accuracy and mitigate the delivered dose deficiency in target volumes compared to the SG and DG models. The lateral heterogeneities should be considered for its future implementation in a clinical TPS.
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Key biological mechanisms involved in high-LET radiation therapies with a focus on DNA damage and repair. Expert Rev Mol Med 2022; 24:e15. [PMID: 35357290 DOI: 10.1017/erm.2022.6] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
DNA damage and repair studies are at the core of the radiation biology field and represent also the fundamental principles informing radiation therapy (RT). DNA damage levels are a function of radiation dose, whereas the type of damage and biological effects such as DNA damage complexity, depend on radiation quality that is linear energy transfer (LET). Both levels and types of DNA damage determine cell fate, which can include necrosis, apoptosis, senescence or autophagy. Herein, we present an overview of current RT modalities in the light of DNA damage and repair with emphasis on medium to high-LET radiation. Proton radiation is discussed along with its new adaptation of FLASH RT. RT based on α-particles includes brachytherapy and nuclear-RT, that is proton-boron capture therapy (PBCT) and boron-neutron capture therapy (BNCT). We also discuss carbon ion therapy along with combinatorial immune-based therapies and high-LET RT. For each RT modality, we summarise relevant DNA damage studies. Finally, we provide an update of the role of DNA repair in high-LET RT and we explore the biological responses triggered by differential LET and dose.
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Schneider M, Winkler K, Kell R, Pfaffl MW, Atkinson MJ, Moertl S. The Chaperone Protein GRP78 Promotes Survival and Migration of Head and Neck Cancer After Direct Radiation Exposure and Extracellular Vesicle-Transfer. Front Oncol 2022; 12:842418. [PMID: 35299733 PMCID: PMC8921984 DOI: 10.3389/fonc.2022.842418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/09/2022] [Indexed: 01/01/2023] Open
Abstract
Background and Purpose Increased levels of the chaperone protein GRP78 have been implicated in poorer outcomes of cancer therapy. We have therefore explored the functional connection between the expression of GRP78 and the development of radioresistance and metastatic behavior in HNSCC. Material and Methods The association between gene expression of GRP78 and survival in HNSCC patients was examined using the TCGA database. The influence of ionizing radiation on the GRP78 levels in HNSCC cell lines, their secreted extracellular vesicles (EV) and non-irradiated EV-recipient cells was investigated by Western Blot and FACS. The consequences of chemical inhibition or experimental overexpression of GRP78 on radioresistance and migration of HNSCC cells were analyzed by clonogenic survival and gap closure assays. Results Elevated levels of GRP78 RNA in HNSCC correlated with poorer overall survival. Radiation increased GRP78 protein expression on the surface of HNSCC cell lines. Experimental overexpression of GRP78 increased both radioresistance and migratory potential. Chemical inhibition of GRP78 impaired cell migration. EVs were identified as a potential source of increased GRP78 content as elevated levels of surface GRP78 were found in EVs released by irradiated cells. These vesicles transferred GRP78 to non-irradiated recipient cells during co-cultivation. Conclusions We have identified the chaperone protein GRP78 as a potential driver of increased radioresistance and motility in HNSCC. The uptake of GRP78-rich EVs originating from irradiated cells may contribute to a poorer prognosis through bystander effects mediated by the transfer of GRP78 to non-irradiated cells. Therefore, we consider the chaperone protein GRP78 to be an attractive target for improving radiotherapy strategies.
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Affiliation(s)
- Michael Schneider
- Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Klaudia Winkler
- Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Rosemarie Kell
- Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Michael W Pfaffl
- Animal Physiology and Immunology, TUM School of Life Science, Technical University of Munich, Freising, Germany
| | - Michael J Atkinson
- Chair of Radiation Biology, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Simone Moertl
- Department of Effects and Risks of Ionising and Non-Ionising Radiation, Federal Office for Radiation Protection, Oberschleißheim, Germany
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Huart C, Fransolet M, Demazy C, Le Calvé B, Lucas S, Michiels C, Wéra AC. Taking Advantage of the Senescence-Promoting Effect of Olaparib after X-ray and Proton Irradiation Using the Senolytic Drug, ABT-263. Cancers (Basel) 2022; 14:cancers14061460. [PMID: 35326611 PMCID: PMC8946554 DOI: 10.3390/cancers14061460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
Radiotherapy (RT) is a key component of cancer treatment. Although improvements have been made over the years, radioresistance remains a challenge. For this reason, a better understanding of cell fates in response to RT could improve therapeutic options to enhance cell death and reduce adverse effects. Here, we showed that combining RT (photons and protons) to noncytotoxic concentration of PARP inhibitor, Olaparib, induced a cell line-dependent senescence-like phenotype. The senescent cells were characterized by morphological changes, an increase in p21 mRNA expression as well as an increase in senescence-associated β-galactosidase activity. We demonstrated that these senescent cells could be specifically targeted by Navitoclax (ABT-263), a Bcl-2 family inhibitor. This senolytic drug led to significant cell death when combined with RT and Olaparib, while limited cytotoxicity was observed when used alone. These results demonstrate that a combination of RT with PARP inhibition and senolytics could be a promising therapeutic approach for cancer patients.
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Affiliation(s)
- Camille Huart
- Cellular Biology Research Unit (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (C.H.); (M.F.); (C.D.); (B.L.C.); (C.M.)
| | - Maude Fransolet
- Cellular Biology Research Unit (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (C.H.); (M.F.); (C.D.); (B.L.C.); (C.M.)
| | - Catherine Demazy
- Cellular Biology Research Unit (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (C.H.); (M.F.); (C.D.); (B.L.C.); (C.M.)
| | - Benjamin Le Calvé
- Cellular Biology Research Unit (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (C.H.); (M.F.); (C.D.); (B.L.C.); (C.M.)
| | - Stéphane Lucas
- Laboratory of Analysis by Nuclear Reaction (LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium;
| | - Carine Michiels
- Cellular Biology Research Unit (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (C.H.); (M.F.); (C.D.); (B.L.C.); (C.M.)
| | - Anne-Catherine Wéra
- Cellular Biology Research Unit (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium; (C.H.); (M.F.); (C.D.); (B.L.C.); (C.M.)
- Molecular Imaging, Radiation and Oncology (MIRO) Lab, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Woluwe-Saint-Lambert, Belgium
- Correspondence:
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Barcellini A, Mirandola A, Fiore M, Orlandi E, Cobianchi L. Omentum flap as a spacer before carbon ion radiotherapy for gynecological recurrences. A technical note. Cancer Radiother 2022; 26:599-603. [DOI: 10.1016/j.canrad.2021.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 10/18/2022]
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Pham TT, Whelan B, Oborn BM, Delaney GP, Vinod S, Brighi C, Barton M, Keall P. Magnetic resonance imaging (MRI) guided proton therapy: A review of the clinical challenges, potential benefits and pathway to implementation. Radiother Oncol 2022; 170:37-47. [DOI: 10.1016/j.radonc.2022.02.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 02/09/2022] [Accepted: 02/25/2022] [Indexed: 10/18/2022]
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Abstract
Protons and carbon ions (hadrons) have useful properties for the treatments of patients affected by oncological pathologies. They are more precise than conventional X-rays and possess radiobiological characteristics suited for treating radio-resistant or inoperable tumours. This paper gives an overview of the status of hadron therapy around the world. It focusses on the Italian National Centre for Oncological Hadron therapy (CNAO), introducing operation procedures, system performance, expansion projects, methodologies and modelling to build individualized treatments. There is growing evidence that supports safety and effectiveness of hadron therapy for a variety of clinical situations. However, there is still a lack of high-level evidence directly comparing hadron therapy with modern conventional radiotherapy techniques. The results give an overview of pre-clinical and clinical research studies and of the treatments of 3700 patients performed at CNAO. The success and development of hadron therapy is strongly associated with the creation of networks among hadron therapy facilities, clinics, universities and research institutions. These networks guarantee the growth of cultural knowledge on hadron therapy, favour the efficient recruitment of patients and present available competences for R&D (Research and Development) programmes.
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Liang S, Zhou G, Hu W. Research Progress of Heavy Ion Radiotherapy for Non-Small-Cell Lung Cancer. Int J Mol Sci 2022; 23:2316. [PMID: 35216430 PMCID: PMC8876478 DOI: 10.3390/ijms23042316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/10/2022] [Accepted: 02/18/2022] [Indexed: 02/05/2023] Open
Abstract
Non-small-cell lung cancer (NSCLC) has a high incidence and poses a serious threat to human health. However, the treatment outcomes of concurrent chemoradiotherapy for non-small-cell lung cancer are still unsatisfactory, especially for high grade lesions. As a new cancer treatment, heavy ion radiotherapy has shown promising efficacy and safety in the treatment of non-small-cell lung cancer. This article discusses the clinical progress of heavy ion radiotherapy in the treatment of non-small-cell lung cancer mainly from the different cancer stages, the different doses of heavy ion beams, and the patient's individual factors, and explores the deficiency of heavy ion radiotherapy in the treatment of non-small-cell lung cancer and the directions of future research, in order to provide reference for the wider and better application of heavy ion radiotherapy in the future.
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Affiliation(s)
| | - Guangming Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China;
| | - Wentao Hu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China;
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Geoghegan T, Patwardhan K, Nelson N, Hill P, Flynn R, Smith B, Hyer D. Mechanical Characterization and Validation of the Dynamic Collimation System Prototype for Proton Radiotherapy. J Med Device 2022; 16:021013. [DOI: 10.1115/1.4053722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 01/05/2022] [Indexed: 11/08/2022] Open
Abstract
Abstract
Radiation therapy is integral to cancer treatments for more than half of patients. Pencil beam scanning (PBS) proton therapy is the latest radiation therapy technology that uses a beam of protons that are magnetically steered and delivered to the tumor. One of the limiting factors of PBS accuracy is the beam cross-sectional size, similar to how a painter is only as accurate as the size of their brush allows. To address this, collimators can be used to shape the beam along the tumor edge to minimize the dose spread outside of the tumor. Under development is a dynamic collimation system (DCS) that uses two pairs of nickel trimmers that collimate the beam at the tumor periphery, limiting dose from spilling into healthy tissue. Herein, we establish the dosimetric and mechanical acceptance criteria for the DCS based on a functioning prototype and Monte Carlo methods, characterize the mechanical accuracy of the prototype, and validate that the acceptance criteria are met. From Monte Carlo simulations, we found that the trimmers must be positioned within ±0.5mm and ±1.0° for the dose distributions to pass our gamma analysis. We characterized the trimmer positioners at jerk values up to 400 m/s3 and validated their accuracy to 50 µm. We measured and validated the rotational trimmer accuracy to ±0.5° with a FARO® ScanArm. Lastly, we calculated time penalties associated with the DCS and found that the additional time required to treat one field using the DCS varied from 25-52 seconds.
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Affiliation(s)
- Theodore Geoghegan
- Department of Radiation Oncology, University of Iowa Hospitals & Clinics, 200 Hawkins Dr., Iowa City, IA 52242
| | - Kaustubh Patwardhan
- Department of Radiation Oncology, University of Iowa Hospitals & Clinics, 200 Hawkins Dr., Iowa City, IA 52242
| | - Nicholas Nelson
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI, 53705 USA
| | - Patrick Hill
- Department of Human Oncology, School of Medicine & Public Health, University of Wisconsin - Madison, 600 Highland Avenue, K4/B82, Madison, WI 53792
| | - Ryan Flynn
- Department of Radiation Oncology, University of Iowa Hospitals & Clinics, 200 Hawkins Dr., Iowa City, IA 52242
| | - Blake Smith
- Department of Radiation Oncology, University of Iowa Hospitals & Clinics, 200 Hawkins Dr., Iowa City, IA 52242
| | - Daniel Hyer
- Department of Radiation Oncology, University of Iowa Hospitals & Clinics, 200 Hawkins Dr., Iowa City, IA 52242
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Komarova LN, Melnikova AA, Baldov DA. Synergetic effects of the combined action of carbon ions and the chemotherapy drug doxorubicin on HeLa cancer cells. NUCLEAR ENERGY AND TECHNOLOGY 2021. [DOI: 10.3897/nucet.7.78336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Proton and carbon beam therapy is currently recognized as the most effective and highly accurate form of radiation therapy for deeply located tumors, including radioresistant ones. This is due to the fact that they have all the advantages of spatial dose distribution and, at the same time, are densely ionizing radiations capable of effectively affecting hypoxic, slow-growing tumors and other neoplasms that are insensitive to traditional types of radiation. It is well known that one of the main methods for treating neoplasms is chemotherapy. The predominant mechanism of action of anti-tumor drugs is the induction of DNA damage with the subsequent impossibility of repair. In our study, we used an anti-tumor antibiotic of the anthracycline series, doxorubicin. The assessment of the potential significance of the synergistic interaction of ionizing radiation with chemical preparations in medical radiology remains an urgent and unresolved problem. It is possible to achieve the maximum effect of the combined action of two agents when they act simultaneously. The phenomenon of synergy can be used to optimize the combined use of radiation and chemotherapy in clinical practice. In this regard, it seems relevant to conduct a study for HeLa cancer cells exposed to ionizing radiation, an antitumor drug, as well as their combination. In the course of the study, results were obtained on the manifestation of the synergistic nature of the agents used, which is of great practical and theoretical importance for understanding the mechanism of the combined effect of ionizing radiation and the chemotherapy drug (doxorubicin). The obtained data can be helpful in optimizing the combined effects in order to achieve maximum synergistic interaction.
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Avoidance or adaptation of radiotherapy in patients with cancer with Li-Fraumeni and heritable TP53-related cancer syndromes. Lancet Oncol 2021; 22:e562-e574. [PMID: 34856153 DOI: 10.1016/s1470-2045(21)00425-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/14/2021] [Accepted: 07/21/2021] [Indexed: 12/18/2022]
Abstract
The management of patients with cancer and Li-Fraumeni or heritable TP53-related cancer syndromes is complex because of their increased risk of developing second malignant neoplasms after genotoxic stresses such as systemic treatments or radiotherapy (radiosusceptibility). Clinical decision making also integrates the risks of normal tissue toxicity and sequelae (radiosensitivity) and tumour response to radiotherapy (radioresistance and radiocurability). Radiotherapy should be avoided in patients with cancer and Li-Fraumeni or heritable TP53 cancer-related syndromes, but overall prognosis might be poor without radiotherapy: radioresistance in these patients seems similar to or worse than that of the general population. Radiosensitivity in germline TP53 variant carriers seems similar to that in the general population. The risk of second malignant neoplasms according to germline TP53 variant and the patient's overall oncological prognosis should be assessed during specialised multidisciplinary staff meetings. Radiotherapy should be avoided whenever other similarly curative treatment options are available. In other cases, it should be adapted to minimise the risk of second malignant neoplasms in patients who still require radiotherapy despite its genotoxicity, in view of its potential benefit. Adaptations might be achieved through the reduction of irradiated volumes using proton therapy, non-ionising diagnostic procedures, image guidance, and minimal stray radiation. Non-ionising imaging should become more systematic. Radiotherapy approaches that might result in a lower probability of misrepaired DNA damage (eg, particle therapy biology and tumour targeting) are an area of investigation.
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Durante M, Debus J, Loeffler JS. Physics and biomedical challenges of cancer therapy with accelerated heavy ions. NATURE REVIEWS. PHYSICS 2021; 3:777-790. [PMID: 34870097 PMCID: PMC7612063 DOI: 10.1038/s42254-021-00368-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Radiotherapy should have low toxicity in the entrance channel (normal tissue) and be very effective in cell killing in the target region (tumour). In this regard, ions heavier than protons have both physical and radiobiological advantages over conventional X-rays. Carbon ions represent an excellent combination of physical and biological advantages. There are a dozen carbon-ion clinical centres in Europe and Asia, and more under construction or at the planning stage, including the first in the USA. Clinical results from Japan and Germany are promising, but a heated debate on the cost-effectiveness is ongoing in the clinical community, owing to the larger footprint and greater expense of heavy ion facilities compared with proton therapy centres. We review here the physical basis and the clinical data with carbon ions and the use of different ions, such as helium and oxygen. Research towards smaller and cheaper machines with more effective beam delivery is necessary to make particle therapy affordable. The potential of heavy ions has not been fully exploited in clinics and, rather than there being a single 'silver bullet', different particles and their combination can provide a breakthrough in radiotherapy treatments in specific cases.
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Affiliation(s)
- Marco Durante
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Institute of Condensed Matter Physics, Technische Universität Darmstadt, Darmstadt, Germany
| | - Jürgen Debus
- Department of Radiation Oncology and Heidelberg Ion Beam Therapy Center, Heidelberg University Hospital, Heidelberg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jay S. Loeffler
- Departments of Radiation Oncology and Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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75
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Ultra-High Dose Rate (FLASH) Carbon Ion Irradiation: Dosimetry and First Cell Experiments. Int J Radiat Oncol Biol Phys 2021; 112:1012-1022. [PMID: 34813912 DOI: 10.1016/j.ijrobp.2021.11.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 11/07/2021] [Accepted: 11/15/2021] [Indexed: 01/05/2023]
Abstract
PURPOSE To establish a beam monitoring and dosimetry system to enable the FLASH dose rate carbon ion irradiation and investigate, at different oxygen concentrations, the in vitro biological response in comparison to the conventional dose rate. METHODS AND MATERIALS CHO-K1 cell response to irradiation at different dose rates and at different levels of oxygenation was studied using clonogenic assay. The Heidelberg Ion-Beam Therapy Center (HIT) synchrotron, after technical improvements, was adjusted to extract ≥5 × 108 12C ions within approximately 150 milliseconds. The beam monitors were filled with helium. RESULTS The FLASH irradiation with beam scanning yields a dose of 7.5 Gy (homogeneity of ±5%) for a 280 MeV/u beam in a volume of at least 8 mm in diameter and a corresponding dose rate of 70 Gy/s (±20%). The dose repetition accuracy is better than 2%, the systematic uncertainty is better than 2%. Clonogenic assay demonstrates a significant FLASH sparing effect which is strongly oxygenation-dependent and mostly pronounced at 0.5% O2 but absent at 0% and 21% O2. CONCLUSION The FLASH dose rates >40 Gy/s were achieved with carbon beams. Cell survival analysis revealed FLASH dose rate sparing in hypoxia (0.5%-4% O2).
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76
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Eichkorn T, König L, Held T, Naumann P, Harrabi S, Ellerbrock M, Herfarth K, Haberer T, Debus J. Carbon Ion Radiation Therapy: One Decade of Research and Clinical Experience at Heidelberg Ion Beam Therapy Center. Int J Radiat Oncol Biol Phys 2021; 111:597-609. [PMID: 34560023 DOI: 10.1016/j.ijrobp.2021.05.131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 12/26/2022]
Affiliation(s)
- Tanja Eichkorn
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany.
| | - Laila König
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany
| | - Thomas Held
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany
| | - Patrick Naumann
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany
| | - Semi Harrabi
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany
| | | | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany
| | | | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany; National Center for Tumor Diseases, Heidelberg, Germany; Heidelberg Ion Beam Therapy Center, Heidelberg, Germany; Clinical Cooperation Unit, Radiation Oncology, German Cancer Research Center, Heidelberg, Germany; German Cancer Consortium, Partner Site Heidelberg, German Cancer Research Center, Heidelberg, Germany
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77
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Extension of RBE-weighted 4D particle dose calculation for non-periodic motion. Phys Med 2021; 91:62-72. [PMID: 34715550 DOI: 10.1016/j.ejmp.2021.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Highly conformal scanned Carbon Ion Radiotherapy (CIRT) might permit dose escalation and improved local control in advanced stage thoracic tumors, but is challenged by target motion. Dose calculation algorithms typically assume a periodically repeating, regular motion. To assess the effect of realistic, irregular motion, new algorithms of validated accuracy are needed. METHODS We extended an in-house treatment planning system to calculate RBE-weighted dose distributions in CIRT on non-periodic CT image sequences. Dosimetric accuracy was validated experimentally on a moving, time-resolved ionization chamber array. Log-file based dose reconstructions were compared by gamma analysis and correlation to measurements at every intermediate detector frame during delivery. The impact of irregular motion on treatment quality was simulated on a virtual 4DCT thorax phantom. Periodic motion was compared to motion with varying amplitude and period ± baseline drift. Rescanning as a mitigation strategy was assessed on all scenarios. RESULTS In experimental validation, average gamma pass rates were 99.89+-0.30% for 3%/3 mm and 88.2+-2.2% for 2%/2 mm criteria. Average correlation for integral dose distributions was 0.990±0.002. Median correlation for single 200 ms frames was 0.947±0.006. In the simulations, irregular motion deteriorated V95 target coverage to 81.2%, 76.6% and 79.0% for regular, irregular motion and irregular motion with base-line drift, respectively. Rescanning restored V95 to >98% for both scenarios without baseline drift, but not with additional baseline drift at 83.7%. CONCLUSIONS The validated algorithm permits to study the effects of irregular motion and to develop and adapt appropriate motion mitigation techniques.
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78
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Radiation-Induced Fibrotic Tumor Microenvironment Regulates Anti-Tumor Immune Response. Cancers (Basel) 2021; 13:cancers13205232. [PMID: 34680381 PMCID: PMC8533839 DOI: 10.3390/cancers13205232] [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: 09/08/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 01/04/2023] Open
Abstract
Simple Summary Radiation therapy can modulate anti-tumor immune responses. In this study, we investigated the relationship between the anti-tumor immune response and tumor fibrosis after X-ray or neutron radiation therapy. Neutron radiation therapy resulted in lesser fibrosis and greater anti-tumor immunity compared to X-ray irradiation. Radiation therapy-induced fibrotic changes within the tumor environment and tumor regrowth were suppressed by specifically deleting Trp53 in endothelial cells. In particular, the upregulation of PD-L1 expression after X-ray radiation therapy was significantly suppressed via EC-Trp53 deletion. Understanding the effects of different radiation therapy types on the tumor microenvironment provides strategies for enhancing the efficacy of combined radio- and immunotherapy. Abstract High linear energy transfer (LET) radiation, such as neutron radiation, is considered more effective for the treatment of cancer than low LET radiation, such as X-rays. We previously reported that X-ray irradiation induced endothelial-to-mesenchymal transition (EndMT) and profibrotic changes, which contributed to the radioresistance of tumors. However, this effect was attenuated in tumors of endothelial-specific Trp53-knockout mice. Herein, we report that compared to X-ray irradiation, neutron radiation therapy reduced collagen deposition and suppressed EndMT in tumors. In addition to the fewer fibrotic changes, more cluster of differentiation (CD8)-positive cytotoxic T cells were observed in neutron-irradiated regrowing tumors than in X-ray-irradiated tumors. Furthermore, lower programmed death-ligand 1 (PD-L1) expression was noted in the former. Endothelial-specific Trp53 deletion suppressed fibrotic changes within the tumor environment following both X-ray and neutron radiation therapy. In particular, the upregulation in PD-L1 expression after X-ray radiation therapy was significantly dampened. Our findings suggest that compared to low LET radiation therapy, high LET radiation therapy can efficiently suppress profibrotic changes and enhance the anti-tumor immune response, resulting in delayed tumor regrowth.
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79
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Rousseau P, González-Vázquez J, Piekarski DG, Kopyra J, Domaracka A, Alcamí M, Adoui L, Huber BA, Díaz-Tendero S, Martín F. Timing of charge migration in betaine by impact of fast atomic ions. SCIENCE ADVANCES 2021; 7:eabg9080. [PMID: 34597129 PMCID: PMC10938492 DOI: 10.1126/sciadv.abg9080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
The way molecules break after ion bombardment is intimately related to the early electron dynamics generated in the system, in particular, charge (or electron) migration. We exploit the natural positive-negative charge splitting in the zwitterionic molecule betaine to selectively induce double electron removal from its negatively charged side by impact of fast O6+ ions. The loss of two electrons in this localized region of the molecular skeleton triggers a competition between direct Coulomb explosion and charge migration that is examined to obtain temporal information from ion-ion coincident measurements and nonadiabatic molecular dynamics calculations. We find a charge migration time, from one end of the molecule to the other, of approximately 20 to 40 femtoseconds. This migration time is longer than that observed in molecules irradiated by ultrashort light pulses and is the consequence of charge migration being driven by adiabatic nuclear dynamics in the ground state of the molecular dication.
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Affiliation(s)
- Patrick Rousseau
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000 Caen, France
| | - Jesús González-Vázquez
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Dariusz G. Piekarski
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Janina Kopyra
- Faculty of Exact and Natural Sciences, Siedlce University of Natural Sciences and Humanities, 3 Maja 54, 08-110 Siedlce, Poland
| | - Alicja Domaracka
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000 Caen, France
| | - Manuel Alcamí
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nano), Cantoblanco, 28049 Madrid, Spain
| | - Lamri Adoui
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000 Caen, France
| | - Bernd A. Huber
- Normandie Univ, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14000 Caen, France
| | - Sergio Díaz-Tendero
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Fernando Martín
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nano), Cantoblanco, 28049 Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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80
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Riva G, Imparato S, Savietto G, Pecorilla M, Iannalfi A, Barcellini A, Ronchi S, Fiore MR, Paganelli C, Buizza G, Ciocca M, Baroni G, Preda L, Orlandi E. Potential role of functional imaging in predicting outcome for patients treated with carbon ion therapy: a review. Br J Radiol 2021; 94:20210524. [PMID: 34520670 DOI: 10.1259/bjr.20210524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Carbon ion radiation therapy (CIRT) is an emerging radiation technique with advantageous physical and radiobiologic properties compared to conventional radiotherapy (RT) providing better response in case of radioresistant and hypoxic tumors. Our aim is to critically review if functional imaging techniques could play a role in predicting outcome of CIRT-treated tumors, as already proven for conventional RT. METHODS 14 studies, concerning Magnetic resonance imaging (MRI) and Positron Emission Tomography (PET), were selected after a comprehensive search on multiple electronic databases from January 2000 to March 2020. RESULTS MRI studies (n = 5) focused on diffusion-weighted MRI and, even though quantitative parameters were the same in all studies (apparent diffusion coefficient, ADC), results were not univocal, probably due to different imaging acquisition protocols and tumoral histology. For PET studies (n = 9), different tracers were used such as [18F]FDG and other uncommon tracers ([11C]MET, [18F]FLT), with a relevant heterogeneity regarding parameters used for outcome assessment. CONCLUSION No conclusion can be drawn on the predictive value of functional imaging in CIRT-treated tumors. A standardization of image acquisition, multi-institutional large trials and external validations are needed in order to establish the prognostic value of functional imaging in CIRT and to guide clinical practice. ADVANCES IN KNOWLEDGE Emerging studies focused on functional imaging's role in predicting CIRT outcome. Due to the heterogeneity of images acquisition and studies, results are conflicting and prospective large studies with imaging standardized protocol are needed.
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Affiliation(s)
- Giulia Riva
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Sara Imparato
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Giovanni Savietto
- Unit of Radiology, Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Mattia Pecorilla
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Alberto Iannalfi
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Amelia Barcellini
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Sara Ronchi
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Maria Rosaria Fiore
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Chiara Paganelli
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milano, Italy
| | - Giulia Buizza
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milano, Italy
| | - Mario Ciocca
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Guido Baroni
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milano, Italy
| | - Lorenzo Preda
- Unit of Radiology, Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, Pavia, Italy.,Department of Radiology, I.R.C.C.S. Policlinico San Matteo Foundation, Pavia, Italy
| | - Ester Orlandi
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
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81
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Wong JC, Kanai Y. First Principles Dynamics Study of Excited Hole Relaxation in DNA. Chemphyschem 2021; 23:e202100521. [PMID: 34494706 DOI: 10.1002/cphc.202100521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/30/2021] [Indexed: 11/08/2022]
Abstract
A recent theoretical work showed that ion irradiation generates excited holes deep within the valence band of DNA. In this work, we investigate the excited hole relaxation toward HOMO using a first-principles computational method following such ionization events. The excited hole relaxation is found to depend significantly on the energetic position of the excited hole generated. The relaxation process is found to be an order of magnitude slower for holes that are generated deeper than 20 eV than those generated within 10 eV, where the probability for the initial ionization events is the highest. However, the excited holes that are generated in different spatial moieties such as DNA nucleotide bases and phosphate backbones do not show noticeable differences in terms of the relaxation time. Our work also shows that decoherence due to nuclei dynamics slows down the relaxation by a factor of two or more. At the same time, the relaxation time is found to be less than a couple of picoseconds, much shorter than typical timescales associated with chemical bond dissociation.
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Affiliation(s)
- Jian Cheng Wong
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Yosuke Kanai
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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82
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Raghavapudi H, Singroul P, Kohila V. Brain Tumor Causes, Symptoms, Diagnosis and Radiotherapy Treatment. Curr Med Imaging 2021; 17:931-942. [PMID: 33573575 DOI: 10.2174/1573405617666210126160206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/15/2020] [Accepted: 12/17/2020] [Indexed: 11/22/2022]
Abstract
The strategy used for the treatment of given brain cancer is critical in determining the post effects and survival. An oncological diagnosis of tumor evaluates a range of parameters such as shape, size, volume, location and neurological complexity that define the symptomatic severity. The evaluation determines a suitable treatment approach chosen from a range of options such as surgery, chemotherapy, hormone therapy, radiation therapy and other targeted therapies. Often, a combination of such therapies is applied to achieve superior results. Radiotherapy serves as a better treatment strategy because of a higher survival rate. It offers the flexibility of synergy with other treatment strategies and fewer side effects on organs at risk. This review presents a radiobiological perspective in the treatment of brain tumor. The cause, symptoms, diagnosis, treatment, post-treatment effects and the framework involved in its elimination are summarized.
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Affiliation(s)
- Haarika Raghavapudi
- Department of Biotechnology, National Institute of Technology Warangal, Warangal -506004, Telangana, India
| | - Pankaj Singroul
- Department of Biotechnology, National Institute of Technology Warangal, Warangal -506004, Telangana, India
| | - V Kohila
- Department of Biotechnology, National Institute of Technology Warangal, Warangal -506004, Telangana, India
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83
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Weber UA, Scifoni E, Durante M. FLASH radiotherapy with carbon ion beams. Med Phys 2021; 49:1974-1992. [PMID: 34318508 DOI: 10.1002/mp.15135] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 12/17/2022] Open
Abstract
FLASH radiotherapy is considered a new potential breakthrough in cancer treatment. Ultra-high dose rates (>40 Gy/s) have been shown to reduce toxicity in the normal tissue without compromising tumor control, resulting in a widened therapeutic window. These high dose rates are more easily achievable in the clinic with charged particles, and clinical trials are, indeed, ongoing using electrons or protons. FLASH could be an attractive solution also for heavier ions such as carbon and could even enhance the therapeutic window. However, it is not yet known whether the FLASH effect will be the same as for sparsely ionizing radiation when densely ionizing carbons ions are used. Here we discuss the technical challenges in beam delivery and present a promising solution using 3D range-modulators in order to apply ultra-high dose rates (UHDR) compatible with FLASH with carbon ions. Furthermore, we will discuss the possible outcome of C-ion therapy at UHDR on the level of the radiobiological and radiation chemical effects.
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Affiliation(s)
- Uli Andreas Weber
- Biophysics Department, GSI Helhmoltzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Emanuele Scifoni
- Istituto Nazionale di Fisica Nucleare (INFN), Trento Institute for Fundamental Physics and Applications (TIFPA), Trento, Italy
| | - Marco Durante
- Biophysics Department, GSI Helhmoltzzentrum für Schwerionenforschung, Darmstadt, Germany.,Institute of Condensed Matter Physics, Technische Universität Darmstadt, Darmstadt, Germany
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84
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Bláha P, Feoli C, Agosteo S, Calvaruso M, Cammarata FP, Catalano R, Ciocca M, Cirrone GAP, Conte V, Cuttone G, Facoetti A, Forte GI, Giuffrida L, Magro G, Margarone D, Minafra L, Petringa G, Pucci G, Ricciardi V, Rosa E, Russo G, Manti L. The Proton-Boron Reaction Increases the Radiobiological Effectiveness of Clinical Low- and High-Energy Proton Beams: Novel Experimental Evidence and Perspectives. Front Oncol 2021; 11:682647. [PMID: 34262867 PMCID: PMC8274279 DOI: 10.3389/fonc.2021.682647] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/17/2021] [Indexed: 12/12/2022] Open
Abstract
Protontherapy is a rapidly expanding radiotherapy modality where accelerated proton beams are used to precisely deliver the dose to the tumor target but is generally considered ineffective against radioresistant tumors. Proton-Boron Capture Therapy (PBCT) is a novel approach aimed at enhancing proton biological effectiveness. PBCT exploits a nuclear fusion reaction between low-energy protons and 11B atoms, i.e. p+11B→ 3α (p-B), which is supposed to produce highly-DNA damaging α-particles exclusively across the tumor-conformed Spread-Out Bragg Peak (SOBP), without harming healthy tissues in the beam entrance channel. To confirm previous work on PBCT, here we report new in-vitro data obtained at the 62-MeV ocular melanoma-dedicated proton beamline of the INFN-Laboratori Nazionali del Sud (LNS), Catania, Italy. For the first time, we also tested PBCT at the 250-MeV proton beamline used for deep-seated cancers at the Centro Nazionale di Adroterapia Oncologica (CNAO), Pavia, Italy. We used Sodium Mercaptododecaborate (BSH) as 11B carrier, DU145 prostate cancer cells to assess cell killing and non-cancer epithelial breast MCF-10A cells for quantifying chromosome aberrations (CAs) by FISH painting and DNA repair pathway protein expression by western blotting. Cells were exposed at various depths along the two clinical SOBPs. Compared to exposure in the absence of boron, proton irradiation in the presence of BSH significantly reduced DU145 clonogenic survival and increased both frequency and complexity of CAs in MCF-10A cells at the mid- and distal SOBP positions, but not at the beam entrance. BSH-mediated enhancement of DNA damage response was also found at mid-SOBP. These results corroborate PBCT as a strategy to render protontherapy amenable towards radiotherapy-resilient tumor. If coupled with emerging proton FLASH radiotherapy modalities, PBCT could thus widen the protontherapy therapeutic index.
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Affiliation(s)
- Pavel Bláha
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli, Naples, Italy
| | - Chiara Feoli
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli, Naples, Italy
| | - Stefano Agosteo
- Energy Department, Politecnico di Milano, and INFN, Sezione di Milano, Milan, Italy
| | - Marco Calvaruso
- Istituto di Bioimmagini e Fisiologia Molecolare-Consiglio Nazionale delle Ricerche (IBFM-CNR), Cefalù, Italy.,Laboratori Nazionali del Sud (LNS), INFN, Catania, Italy
| | - Francesco Paolo Cammarata
- Istituto di Bioimmagini e Fisiologia Molecolare-Consiglio Nazionale delle Ricerche (IBFM-CNR), Cefalù, Italy.,Laboratori Nazionali del Sud (LNS), INFN, Catania, Italy
| | | | - Mario Ciocca
- Medical Physics Unit & Research Department, Centro Nazionale di Adroterapia Oncologica (CNAO) & INFN, Sezione di Pavia, Pavia, Italy
| | | | - Valeria Conte
- Laboratori Nazionali di Legnaro (LNL), INFN, Legnaro, Italy
| | | | - Angelica Facoetti
- Medical Physics Unit & Research Department, Centro Nazionale di Adroterapia Oncologica (CNAO) & INFN, Sezione di Pavia, Pavia, Italy
| | - Giusi Irma Forte
- Istituto di Bioimmagini e Fisiologia Molecolare-Consiglio Nazionale delle Ricerche (IBFM-CNR), Cefalù, Italy.,Laboratori Nazionali del Sud (LNS), INFN, Catania, Italy
| | - Lorenzo Giuffrida
- Extreme Light Infrastructure (ELI)-Beamlines Center, Institute of Physics (FZU), Czech Academy of Sciences, Prague, Czechia
| | - Giuseppe Magro
- Medical Physics Unit & Research Department, Centro Nazionale di Adroterapia Oncologica (CNAO) & INFN, Sezione di Pavia, Pavia, Italy
| | - Daniele Margarone
- Extreme Light Infrastructure (ELI)-Beamlines Center, Institute of Physics (FZU), Czech Academy of Sciences, Prague, Czechia
| | - Luigi Minafra
- Istituto di Bioimmagini e Fisiologia Molecolare-Consiglio Nazionale delle Ricerche (IBFM-CNR), Cefalù, Italy.,Laboratori Nazionali del Sud (LNS), INFN, Catania, Italy
| | - Giada Petringa
- Laboratori Nazionali del Sud (LNS), INFN, Catania, Italy.,Extreme Light Infrastructure (ELI)-Beamlines Center, Institute of Physics (FZU), Czech Academy of Sciences, Prague, Czechia
| | - Gaia Pucci
- Istituto di Bioimmagini e Fisiologia Molecolare-Consiglio Nazionale delle Ricerche (IBFM-CNR), Cefalù, Italy.,Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STeBiCeF), Università di Palermo, Palermo, Italy
| | - Valerio Ricciardi
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli, Naples, Italy.,Department of Mathematics & Physics, Università L. Vanvitelli, Caserta, Italy
| | - Enrico Rosa
- Radiation Biophysics Laboratory, Department of Physics "E. Pancini", Università di Napoli Federico II, Naples, Italy
| | - Giorgio Russo
- Istituto di Bioimmagini e Fisiologia Molecolare-Consiglio Nazionale delle Ricerche (IBFM-CNR), Cefalù, Italy.,Laboratori Nazionali del Sud (LNS), INFN, Catania, Italy.,The Sicilian Center of Nuclear Physics and the Structure of Matter (CSFNSM), Catania, Italy
| | - Lorenzo Manti
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli, Naples, Italy.,Radiation Biophysics Laboratory, Department of Physics "E. Pancini", Università di Napoli Federico II, Naples, Italy
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85
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Flint DB, Bright SJ, McFadden CH, Konishi T, Ohsawa D, Turner B, Lin SH, Grosshans DR, Chiu HS, Sumazin P, Shaitelman SF, Sawakuchi GO. Cell lines of the same anatomic site and histologic type show large variability in intrinsic radiosensitivity and relative biological effectiveness to protons and carbon ions. Med Phys 2021; 48:3243-3261. [PMID: 33837540 DOI: 10.1002/mp.14878] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/27/2021] [Accepted: 03/24/2021] [Indexed: 12/20/2022] Open
Abstract
PURPOSE To show that intrinsic radiosensitivity varies greatly for protons and carbon (C) ions in addition to photons, and that DNA repair capacity remains important in governing this variability. METHODS We measured or obtained from the literature clonogenic survival data for a number of human cancer cell lines exposed to photons, protons (9.9 keV/μm), and C-ions (13.3-77.1 keV/μm). We characterized their intrinsic radiosensitivity by the dose for 10% or 50% survival (D10% or D50% ), and quantified the variability at each radiation quality by the coefficient of variation (COV) in D10% and D50% . We also treated cells with DNA repair inhibitors prior to irradiation to assess how DNA repair capacity affects their variability. RESULTS We found no statistically significant differences in the COVs of D10% or D50% between any of the radiation qualities investigated. The same was true regardless of whether the cells were treated with DNA repair inhibitors, or whether they were stratified into histologic subsets. Even within histologic subsets, we found remarkable differences in radiosensitivity for high LET C-ions that were often greater than the variations in RBE, with brain cancer cells varying in D10% (D50% ) up to 100% (131%) for 77.1 keV/μm C-ions, and non-small cell lung cancer and pancreatic cancer cell lines varying up to 55% (76%) and 51% (78%), respectively, for 60.5 keV/μm C-ions. The cell lines with modulated DNA repair capacity had greater variability in intrinsic radiosensitivity across all radiation qualities. CONCLUSIONS Even for cell lines of the same histologic type, there are remarkable variations in intrinsic radiosensitivity, and these variations do not differ significantly between photon, proton or C-ion radiation. The importance of DNA repair capacity in governing the variability in intrinsic radiosensitivity is not significantly diminished for higher LET radiation.
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Affiliation(s)
- David B Flint
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Scott J Bright
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Conor H McFadden
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Teruaki Konishi
- Single Cell Radiation Biology Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Daisuke Ohsawa
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
- Department of Accelerator and Medical Physics, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Broderick Turner
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Steven H Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - David R Grosshans
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hua-Sheng Chiu
- Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Pavel Sumazin
- Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Simona F Shaitelman
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gabriel O Sawakuchi
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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86
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Kantre K, Moro MV, Paneta V, Primetzhofer D. Assessing electronic energy loss of heavy ions detected in reflection geometry. SURF INTERFACE ANAL 2021. [DOI: 10.1002/sia.6951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Marcos V. Moro
- Department of Physics and Astronomy Uppsala University Uppsala Sweden
| | - Valentina Paneta
- Department of Physics and Astronomy Uppsala University Uppsala Sweden
| | - Daniel Primetzhofer
- Department of Physics and Astronomy Uppsala University Uppsala Sweden
- Tandem Laboratory Uppsala University Uppsala Sweden
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87
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Yamada S, Takiyama H, Isozaki Y, Shinoto M, Makishima H, Yamamoto N, Tsuji H. Carbon-ion Radiotherapy for Colorectal Cancer. JOURNAL OF THE ANUS RECTUM AND COLON 2021; 5:113-120. [PMID: 33937550 PMCID: PMC8084540 DOI: 10.23922/jarc.2020-082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/30/2020] [Indexed: 12/18/2022]
Abstract
Heavy-ion radiotherapy (RT) is a kind of particle RT, and carbon-ion beam constitutes the primary delivery method of heavy-ion RT. Unlike the conventional photon modalities, particle RT, in particular carbon-ion radiotherapy (CIRT), offers unique physical and biological advantages. Particle therapy allows for substantial dose delivery to tumors with minimal surrounding tissue damage. In addition, CIRT in particular possesses biological advantages such as inducing increased double-strand breaks in DNA structures, causing irreversible cell damage independently of cell cycle or oxygenation, more so than proton or photon. It can be expected that CIRT is effective on radioresistant cancers such as colorectal cancers (CRCs). We introduced the results of CIRT for local recurrent rectal cancer, lung metastasis, liver metastasis, and lymph node metastasis.
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Affiliation(s)
- Shigeru Yamada
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Hirotoshi Takiyama
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Yuka Isozaki
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Makoto Shinoto
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Hirokazu Makishima
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Naoyoshi Yamamoto
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Hiroshi Tsuji
- QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
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88
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Iannalfi A, D'Ippolito E, Riva G, Molinelli S, Gandini S, Viselner G, Fiore MR, Vischioni B, Vitolo V, Bonora M, Ronchi S, Petrucci R, Barcellini A, Mirandola A, Russo S, Vai A, Mastella E, Magro G, Maestri D, Ciocca M, Preda L, Valvo F, Orecchia R. Proton and carbon ion radiotherapy in skull base chordomas: a prospective study based on a dual particle and a patient-customized treatment strategy. Neuro Oncol 2021; 22:1348-1358. [PMID: 32193546 DOI: 10.1093/neuonc/noaa067] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The aim of this study is to evaluate results in terms of local control (LC), overall survival (OS), and toxicity profile and to better identify factors influencing clinical outcome of skull base chordoma treated with proton therapy (PT) and carbon ion radiotherapy (CIRT). METHODS We prospectively collected and analyzed data of 135 patients treated between November 2011 and December 2018. Total prescription dose in the PT group (70 patients) and CIRT group (65 patients) was 74 Gy relative biological effectiveness (RBE) delivered in 37 fractions and 70.4 Gy(RBE) delivered in 16 fractions, respectively (CIRT in unfavorable patients). LC and OS were evaluated using the Kaplan-Meier method. Univariate and multivariate analyses were performed, to identify prognostic factors on clinical outcomes. RESULTS After a median follow-up of 44 (range, 6-87) months, 14 (21%) and 8 (11%) local failures were observed in CIRT and PT group, respectively. Five-year LC rate was 71% in CIRT cohort and 84% in PT cohort. The estimated 5-year OS rate in the CIRT and PT group was 82% and 83%, respectively. On multivariate analysis, gross tumor volume (GTV), optic pathways, and/or brainstem compression and dose coverage are independent prognostic factors of local failure risk. High rate toxicity grade ≥3 was reported in 11% of patients. CONCLUSIONS Particle radiotherapy is an effective treatment for skull base chordoma with acceptable late toxicity. GTV, optic pathways, and/or brainstem compression and target coverage were independent prognostic factors for LC. KEY POINTS • Proton and carbon ion therapy are effective and safe in skull base chordoma.• Prognostic factors are GTV, organs at risk compression, and dose coverage.• Dual particle therapy and customized strategy was adopted.
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Affiliation(s)
- Alberto Iannalfi
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Emma D'Ippolito
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Giulia Riva
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Silvia Molinelli
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Sara Gandini
- Department of Experimental Oncology, European Institute of Oncology, IRCCS, Milan, Italy
| | | | - Maria Rosaria Fiore
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Barbara Vischioni
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Viviana Vitolo
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Maria Bonora
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Sara Ronchi
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Rachele Petrucci
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Amelia Barcellini
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Alfredo Mirandola
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Stefania Russo
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Alessandro Vai
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Edoardo Mastella
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Giuseppe Magro
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Davide Maestri
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Mario Ciocca
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Lorenzo Preda
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Francesca Valvo
- Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - Roberto Orecchia
- Scientific Directorate, European Institute of Oncology, IRCCS, Milan, Italy
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89
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Fratelli I, Ciavatti A, Zanazzi E, Basiricò L, Chiari M, Fabbri L, Anthony JE, Quaranta A, Fraboni B. Direct detection of 5-MeV protons by flexible organic thin-film devices. SCIENCE ADVANCES 2021; 7:7/16/eabf4462. [PMID: 33863730 PMCID: PMC8051878 DOI: 10.1126/sciadv.abf4462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/02/2021] [Indexed: 05/05/2023]
Abstract
The direct detection of 5-MeV protons by flexible organic detectors based on thin films is here demonstrated. The organic devices act as a solid-state detector, in which the energy released by the protons within the active layer of the sensor is converted into an electrical current. These sensors can quantitatively and reliably measure the dose of protons impinging on the sensor both in real time and in integration mode. This study shows how to detect and exploit the energy absorbed both by the organic semiconducting layer and by the plastic substrate, allowing to extrapolate information on the present and past irradiation of the detector. The measured sensitivity, S = (5.15 ± 0.13) pC Gy-1, and limit of detection, LOD = (30 ± 6) cGy s-1, of the here proposed detectors assess their efficacy and their potential as proton dosimeters in several fields of application, such as in medical proton therapy.
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Affiliation(s)
- Ilaria Fratelli
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy.
- INFN-Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - Andrea Ciavatti
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
- INFN-Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - Enrico Zanazzi
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, I-38123 Povo, Trento, Italy
- INFN-TIFPA, Via Sommarive 14, I-38123 Povo, Trento, Italy
| | - Laura Basiricò
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
- INFN-Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - Massimo Chiari
- INFN-Florence, Via G. Sansone 1, 50019 Sesto Fiorentino, Florence, Italy
| | - Laura Fabbri
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
- INFN-Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - John E Anthony
- Department of Chemistry and Center for Applied Energy Research, University of Kentucky, Lexington, KY 40506, USA
| | - Alberto Quaranta
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, I-38123 Povo, Trento, Italy
- INFN-TIFPA, Via Sommarive 14, I-38123 Povo, Trento, Italy
| | - Beatrice Fraboni
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
- INFN-Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
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90
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Li Y, Gao Y, Liu X, Shi J, Xia J, Yang J, Mao L. The influence of beam delivery uncertainty on dose uniformity and penumbra for pencil beam scanning in carbon-ion radiotherapy. PLoS One 2021; 16:e0249452. [PMID: 33793680 PMCID: PMC8016259 DOI: 10.1371/journal.pone.0249452] [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: 01/08/2021] [Accepted: 03/18/2021] [Indexed: 11/17/2022] Open
Abstract
The dose uniformity and penumbra in the treatment field are important factors in radiotherapy, which affects the outcomes of radiotherapy. In this study, the integrated depth-dose-distributions (IDDDs) of 190 MeV/u and 260 MeV/u carbon beams in the active spot-scanning delivery system were measured and calculated by FLUKA Monte Carlo simulation based on the Heavy Ion Medical Machine (HIMM). Considering the dose distributions caused by secondary particles and scattering, we also used different types of pencil beam (PB) models to fit and compare the spatial distributions of PB. We superposed a bunch of PB to form a 20×20 cm2 treatment field with the double Gaussian and double Gaussian logistic beam models and calculated the influence of beam delivery error on the field flatness and penumbra, respectively. The simulated IDDDs showed good agreement with the measured values. The triple Gaussian and double Gaussian logistic beam models have good fitness to the simulated dose distributions. There are different influences on dose uniformity and penumbra resulting from beam uncertainties. These results would be helpful for understanding carbon ion therapy, and physical therapists are more familiar with beam characteristics for active scanning therapy, which provides a reference for commissioning and optimization of treatment plans in radiotherapy.
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Affiliation(s)
- Yue Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yunzhe Gao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Huizhou Research Center of Ion Science, Huizhou, China
| | - Xinguo Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Jian Shi
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Jiawen Xia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Huizhou Research Center of Ion Science, Huizhou, China
| | - Jiancheng Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Lijun Mao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
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91
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Marcus D, Lieverse RIY, Klein C, Abdollahi A, Lambin P, Dubois LJ, Yaromina A. Charged Particle and Conventional Radiotherapy: Current Implications as Partner for Immunotherapy. Cancers (Basel) 2021; 13:1468. [PMID: 33806808 PMCID: PMC8005048 DOI: 10.3390/cancers13061468] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
Radiotherapy (RT) has been shown to interfere with inflammatory signals and to enhance tumor immunogenicity via, e.g., immunogenic cell death, thereby potentially augmenting the therapeutic efficacy of immunotherapy. Conventional RT consists predominantly of high energy photon beams. Hypofractionated RT regimens administered, e.g., by stereotactic body radiation therapy (SBRT), are increasingly investigated in combination with cancer immunotherapy within clinical trials. Despite intensive preclinical studies, the optimal dose per fraction and dose schemes for elaboration of RT induced immunogenic potential remain inconclusive. Compared to the scenario of combined immune checkpoint inhibition (ICI) and RT, multimodal therapies utilizing other immunotherapy principles such as adoptive transfer of immune cells, vaccination strategies, targeted immune-cytokines and agonists are underrepresented in both preclinical and clinical settings. Despite the clinical success of ICI and RT combination, e.g., prolonging overall survival in locally advanced lung cancer, curative outcomes are still not achieved for most cancer entities studied. Charged particle RT (PRT) has gained interest as it may enhance tumor immunogenicity compared to conventional RT due to its unique biological and physical properties. However, whether PRT in combination with immune therapy will elicit superior antitumor effects both locally and systemically needs to be further investigated. In this review, the immunological effects of RT in the tumor microenvironment are summarized to understand their implications for immunotherapy combinations. Attention will be given to the various immunotherapeutic interventions that have been co-administered with RT so far. Furthermore, the theoretical basis and first evidences supporting a favorable immunogenicity profile of PRT will be examined.
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Affiliation(s)
- Damiënne Marcus
- The M-Lab, Department of Precision Medicine, GROW–School for Oncology and Developmental Biology, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands; (D.M.); (R.I.Y.L.); (P.L.); (L.J.D.)
| | - Relinde I. Y. Lieverse
- The M-Lab, Department of Precision Medicine, GROW–School for Oncology and Developmental Biology, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands; (D.M.); (R.I.Y.L.); (P.L.); (L.J.D.)
| | - Carmen Klein
- German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Clinical Cooperation Unit Translational Radiation Oncology, Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 460, 69120 Heidelberg, Germany; (C.K.); (A.A.)
- Heidelberg Ion-Beam Therapy Center (HIT), Division of Molecular and Translational Radiation Oncology, Heidelberg Faculty of Medicine (MFHD) and Heidelberg University Hospital (UKHD), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 222, 69120 Heidelberg, Germany
| | - Amir Abdollahi
- German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Clinical Cooperation Unit Translational Radiation Oncology, Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 460, 69120 Heidelberg, Germany; (C.K.); (A.A.)
- Heidelberg Ion-Beam Therapy Center (HIT), Division of Molecular and Translational Radiation Oncology, Heidelberg Faculty of Medicine (MFHD) and Heidelberg University Hospital (UKHD), Im Neuenheimer Feld 450, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 222, 69120 Heidelberg, Germany
| | - Philippe Lambin
- The M-Lab, Department of Precision Medicine, GROW–School for Oncology and Developmental Biology, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands; (D.M.); (R.I.Y.L.); (P.L.); (L.J.D.)
| | - Ludwig J. Dubois
- The M-Lab, Department of Precision Medicine, GROW–School for Oncology and Developmental Biology, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands; (D.M.); (R.I.Y.L.); (P.L.); (L.J.D.)
| | - Ala Yaromina
- The M-Lab, Department of Precision Medicine, GROW–School for Oncology and Developmental Biology, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands; (D.M.); (R.I.Y.L.); (P.L.); (L.J.D.)
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92
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Friedrich T, Henthorn N, Durante M. Modeling Radioimmune Response-Current Status and Perspectives. Front Oncol 2021; 11:647272. [PMID: 33796470 PMCID: PMC8008061 DOI: 10.3389/fonc.2021.647272] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 02/25/2021] [Indexed: 12/13/2022] Open
Abstract
The combination of immune therapy with radiation offers an exciting and promising treatment modality in cancer therapy. It has been hypothesized that radiation induces damage signals within the tumor, making it more detectable for the immune system. In combination with inhibiting immune checkpoints an effective anti-tumor immune response may be established. This inversion from tumor immune evasion raises numerous questions to be solved to support an effective clinical implementation: These include the optimum immune drug and radiation dose time courses, the amount of damage and associated doses required to stimulate an immune response, and the impact of lymphocyte status and dynamics. Biophysical modeling can offer unique insights, providing quantitative information addressing these factors and highlighting mechanisms of action. In this work we review the existing modeling approaches of combined ‘radioimmune’ response, as well as associated fields of study. We propose modeling attempts that appear relevant for an effective and predictive model. We emphasize the importance of the time course of drug and dose delivery in view to the time course of the triggered biological processes. Special attention is also paid to the dose distribution to circulating blood lymphocytes and the effect this has on immune competence.
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Affiliation(s)
- Thomas Friedrich
- Biophysics Department, GSI Helmholtz Center for Heavy Ion Research, Darmstadt, Germany
| | - Nicholas Henthorn
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom.,The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Marco Durante
- Biophysics Department, GSI Helmholtz Center for Heavy Ion Research, Darmstadt, Germany.,Institute for Solid State Physics, Technical University Darmstadt, Darmstadt, Germany
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93
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Barcellini A, Vitolo V, Cobianchi L, Peloso A, Vanoli A, Mirandola A, Facoetti A, Fiore MR, Iannalfi A, Vischioni B, Cuccia F, Ronchi S, Bonora M, Riva G, Petrucci R, D'Ippolito E, Mas FD, Preda L, Valvo F. Re-irradiation With Carbon Ion Radiotherapy for Pelvic Rectal Cancer Recurrences in Patients Previously Irradiated to the Pelvis. In Vivo 2021; 34:1547-1553. [PMID: 32354961 DOI: 10.21873/invivo.11944] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND/AIM Re-irradiation of locally recurrent rectal cancer poses challenges due to the proximity of critical organs, such as the bowel. This study aimed at evaluating the safety and efficacy of re-irradiation with Carbon Ion Radiotherapy (CIRT) in rectal cancer patients with local recurrence. PATIENTS AND METHODS Between 2014 and 2018, 14 patients were treated at the National Center of Oncological Hadrontherapy (CNAO Foundation) with CIRT for locally recurrent rectal cancer. RESULTS All patients concluded the treatment. No G≥3 acute/late reaction nor pelvic infections were observed. The 1-year and 2-year local control rates were, 78% and 52%, respectively, and relapse occurred close to the bowel in 6 patients. The 1-year and 2-year overall survival rates were 100% and 76.2% each; while the 1-year and 2-year metastasis free survival rates were 64.3% and 43%. CONCLUSION CIRT as re-irradiation for locally recurrent rectal cancer emerges as a safe and valid treatment with an acceptable rate of morbidity of surrounding healthy tissue.
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Affiliation(s)
- Amelia Barcellini
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Viviana Vitolo
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Lorenzo Cobianchi
- Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.,General Surgery, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Andrea Peloso
- Division of Abdominal Surgery, Department of Surgery, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,HepatoPancreato-Biliary Centre, Geneva University Hospitals, Geneva, Switzerland
| | - Alessandro Vanoli
- Anatomic Pathology Unit, Department of Molecular Medicine, University of Pavia and Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Alfredo Mirandola
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Angelica Facoetti
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Maria Rosaria Fiore
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Alberto Iannalfi
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Barbara Vischioni
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Francesco Cuccia
- School of Radiation Oncology, University of Palermo, Palermo, Italy
| | - Sara Ronchi
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Maria Bonora
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Giulia Riva
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Rachele Petrucci
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Emma D'Ippolito
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Francesca Dal Mas
- Lincoln International Business School, University of Lincoln, Lincoln, U.K.,Department of Law and Economics of Productive Activities, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Preda
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy.,Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Francesca Valvo
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
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94
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Cordoni F, Missiaggia M, Attili A, Welford SM, Scifoni E, La Tessa C. Generalized stochastic microdosimetric model: The main formulation. Phys Rev E 2021; 103:012412. [PMID: 33601636 PMCID: PMC7975068 DOI: 10.1103/physreve.103.012412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
The present work introduces a rigorous stochastic model, called the generalized stochastic microdosimetric model (GSM^{2}), to describe biological damage induced by ionizing radiation. Starting from the microdosimetric spectra of energy deposition in tissue, we derive a master equation describing the time evolution of the probability density function of lethal and potentially lethal DNA damage induced by a given radiation to a cell nucleus. The resulting probability distribution is not required to satisfy any a priori conditions. After the initial assumption of instantaneous irradiation, we generalized the master equation to consider damage induced by a continuous dose delivery. In addition, spatial features and damage movement inside the nucleus have been taken into account. In doing so, we provide a general mathematical setting to fully describe the spatiotemporal damage formation and evolution in a cell nucleus. Finally, we provide numerical solutions of the master equation exploiting Monte Carlo simulations to validate the accuracy of GSM^{2}. Development of GSM^{2} can lead to improved modeling of radiation damage to both tumor and normal tissues, and thereby impact treatment regimens for better tumor control and reduced normal tissue toxicities.
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Affiliation(s)
- F Cordoni
- Department of Computer Science, University of Verona, Verona, Italy and TIFPA-INFN, Trento, Italy
| | - M Missiaggia
- Department of Physics, University of Trento, Trento, Italy and TIFPA-INFN, Trento, Italy
| | | | - S M Welford
- Department of Radiation Oncology, University of Miami, Miller School of Medicine, Miami, Florida 33136, USA
| | | | - C La Tessa
- Department of Physics, University of Trento, Trento, Italy and TIFPA - INFN, Trento, Italy
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95
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Gianoli C, Göppel M, Meyer S, Palaniappan P, Rädler M, Kamp F, Belka C, Riboldi M, Parodi K. Patient-specific CT calibration based on ion radiography for different detector configurations in 1H, 4He and 12C ion pencil beam scanning. Phys Med Biol 2020; 65:245014. [PMID: 32629442 DOI: 10.1088/1361-6560/aba319] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The empirical conversion of the treatment planning x-ray computed tomography (CT) image to ion stopping power relative to water causes dose calculation inaccuracies in ion beam therapy. A patient-specific calibration of the CT image is enabled by the combination of an ion radiography (iRad) with the forward-projection of the empirically converted CT image along the estimated ion trajectories. This work investigated the patient-specific CT calibration for list-mode and integration-mode detector configurations, with reference to a ground truth ion CT (iCT) image. Analytical simulations of idealized carbon ion and proton trajectories in a numerical anthropomorphic phantom and realistic Monte Carlo simulations of proton, helium and carbon ion pencil beam scanning in a clinical CT image of a head-and-neck patient were considered. Controlled inaccuracy and noise levels were applied to the calibration curve and to the iRad, respectively. The impact of the selection of slices and angles of the iRads, as well as the choice of the optimization algorithm, were investigated. Accurate and robust CT calibration was obtained in analytical simulations of straight carbon ion trajectories. Analytical simulations of non-straight proton trajectories due to scattering suggested limitations for integration-mode but not for list-mode. To make the most of integration-mode, a dedicated objective function was proposed, demonstrating the desired accuracy for sufficiently high proton statistics in analytical simulations. In clinical data the inconsistencies between the iRad and the forward-projection of the ground truth iCT image were in the same order of magnitude as the applied inaccuracies (up to 5%). The accuracy of the CT calibration were within 2%-5% for integration-mode and 1%-3% for list-mode. The feasibility of successful patient-specific CT calibration depends on detector technologies and is primarily limited by these above mentioned inconsistencies that slightly penalize protons over helium and carbon ions due to larger scattering and beam spot size.
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Affiliation(s)
- Chiara Gianoli
- Department of Medical Physics - Experimental Physics, Ludwig-Maximilians-Universität München, Munich, Germany. Author to whom any correspondence should be addressed
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96
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Missiaggia M, Cartechini G, Scifoni E, Rovituso M, Tommasino F, Verroi E, Durante M, La Tessa C. Microdosimetric measurements as a tool to assess potential in-field and out-of-field toxicity regions in proton therapy. Phys Med Biol 2020; 65:245024. [PMID: 32554886 DOI: 10.1088/1361-6560/ab9e56] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Relative biological effectiveness (RBE) variations are thought to be one of the primary causes of unexpected normal-tissue toxicities during tumor treatments with charged particles. Unlike carbon therapy, where treatment planning is optimized on the basis of the RBE-weighted dose, a constant RBE value of 1.1 is currently used in proton therapy. Assuming a uniform value can lead to under- or over-dosage, not just to the tumor but also to surrounding normal tissue. RBE changes have been linked with dose/fraction, the biological endpoint and beam properties. Understanding radiation quality and the associated RBE can improve the prediction of normal-tissue toxicities. In this study, we exploited microdosimetry for characterizing radiation quality in proton therapy in-field, and off-beam at 20 (beam edge), 50 (close out-of-field) and 100 (far out-of-field) mm from the beam center. We measured the lineal energy y spectra in a water phantom irradiated with 152 MeV protons, from which beam quality as well as the physical dose could be obtained. Taking advantage of the linear quadratic model and a modified version of the microdosimetric kinetic model, the microdosimetric data were combined with radiobiological parameters (α and β) of human salivary gland tumor cells for assessing cell survival RBE and RBE-weighted dose. The results indicate that if a dose of 60 Gy is delivered to the peak, the beam edge receives up to 6 Gy while the close and far out-of-field regions receive doses on the order of 10-3 Gy and 10-4 Gy, respectively. The RBE estimate in-beam shows large variations, ranging from 1.0 ± 0.2 at the entrance channel to 2.51 ± 0.15 at the tail. The beam edge follows a similar trend but the RBE calculated at the Bragg peak depth is 2.27 ± 0.17, i.e. twice the RBE in-beam (1.05 ± 0.15). Out-of-field, the estimated RBE is always significantly higher than 1.1 and increases with increasing lateral distance, reaching the overall highest value of 3.4 ± 0.3 at a depth of 206 mm and a lateral distance of 10 mm. The combination of RBE and dose into the biological dose points to the beam edge and the end-of-range in-beam as the areas with the highest risk of potential toxicities.
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Affiliation(s)
- M Missiaggia
- University of Trento, Via Sommarive 14, 38123 Trento, Italy. Trento Institute of Fundamental Physics and Applications (TIFPA), Via Sommarive 14, 38123 Trento, Italy
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97
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Barcellini A, Peloso A, Pugliese L, Vitolo V, Cobianchi L. Locally Advanced Pancreatic Ductal Adenocarcinoma: Challenges and Progress. Onco Targets Ther 2020; 13:12705-12720. [PMID: 33335406 PMCID: PMC7737010 DOI: 10.2147/ott.s220971] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/30/2020] [Indexed: 12/24/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the major causes of death in the Western world, and it is estimated to become the second leading cause of tumour-related mortality in the next 10 years. Among pancreatic cancers, ductal adenocarcinomas are by far the most common, characterised by a challenging diagnosis due to the lack of initial and pathognomonic clinical signs. In this scenario, non-metastatic locally advanced pancreatic cancer (LAPC) accounts for a large proportion of all new pancreatic ductal adenocarcinoma diagnoses. There is no consensus on a common definition of LAPC. Still, it usually includes tumours that are not resectable due to vascular involvement. As of today, treatment is limited, and the prognosis is very unfavourable. Curative-intent surgery remains the gold-standard even if often jeopardized by vascular involvement. Continuing progress in our understanding of LAPC genetics and immunology will permit the development of different treatments, targeted or combined, including radiation therapy, hadrontherapy, targeted immunotherapies or new chemotherapies. A multidisciplinary approach combining various fields of expertise is essential in aiming to limit disease progression as well as patient outcome. Using a narrative literature review approach, the manuscript explores the most up-to-date knowledge concerning locally advanced pancreatic ductal adenocarcinoma management.
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Affiliation(s)
- Amelia Barcellini
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Andrea Peloso
- Divisions of Transplantation and Visceral Surgery, Department of Surgery, University of Geneva, Geneva, Switzerland
| | - Luigi Pugliese
- General Surgery, Foundation IRCCS San Matteo Hospital, Pavia, Italy
| | - Viviana Vitolo
- National Center of Oncological Hadrontherapy (Fondazione CNAO), Pavia, Italy
| | - Lorenzo Cobianchi
- General Surgery, Foundation IRCCS San Matteo Hospital, Pavia, Italy.,Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, Foundation IRCCS San Matteo Hospital, University of Pavia, Pavia, Italy
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98
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Hartmann L, Schröter P, Osen W, Baumann D, Offringa R, Moustafa M, Will R, Debus J, Brons S, Rieken S, Eichmüller SB. Photon versus carbon ion irradiation: immunomodulatory effects exerted on murine tumor cell lines. Sci Rep 2020; 10:21517. [PMID: 33299018 PMCID: PMC7726046 DOI: 10.1038/s41598-020-78577-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/23/2020] [Indexed: 12/18/2022] Open
Abstract
While for photon radiation hypofractionation has been reported to induce enhanced immunomodulatory effects, little is known about the immunomodulatory potential of carbon ion radiotherapy (CIRT). We thus compared the radio-immunogenic effects of photon and carbon ion irradiation on two murine cancer cell lines of different tumor entities. We first calculated the biological equivalent doses of carbon ions corresponding to photon doses of 1, 3, 5, and 10 Gy of the murine breast cancer cell line EO771 and the OVA-expressing pancreatic cancer cell line PDA30364/OVA by clonogenic survival assays. We compared the potential of photon and carbon ion radiation to induce cell cycle arrest, altered surface expression of immunomodulatory molecules and changes in the susceptibility of cancer cells to cytotoxic T cell (CTL) mediated killing. Irradiation induced a dose-dependent G2/M arrest in both cell lines irrespective from the irradiation source applied. Likewise, surface expression of the immunomodulatory molecules PD-L1, CD73, H2-Db and H2-Kb was increased in a dose-dependent manner. Both radiation modalities enhanced the susceptibility of tumor cells to CTL lysis, which was more pronounced in EO771/Luci/OVA cells than in PDA30364/OVA cells. Overall, compared to photon radiation, the effects of carbon ion radiation appeared to be enhanced at higher dose range for EO771 cells and extenuated at lower dose range for PDA30364/OVA cells. Our data show for the first time that equivalent doses of carbon ion and photon irradiation exert similar immunomodulating effects on the cell lines of both tumor entities, highlighted by an enhanced susceptibility to CTL mediated cytolysis in vitro.
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Affiliation(s)
- Laura Hartmann
- German Cancer Research Center (DKFZ), Research Group GMP & T Cell Therapy, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Philipp Schröter
- German Cancer Research Center (DKFZ), Research Group GMP & T Cell Therapy, Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg University Hospital (UKHD), Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital (UKHD), Heidelberg, Germany
| | - Wolfram Osen
- German Cancer Research Center (DKFZ), Research Group GMP & T Cell Therapy, Heidelberg, Germany
| | - Daniel Baumann
- German Cancer Research Center (DKFZ), Molecular Oncology of Gastrointestinal Tumors, Heidelberg, Germany
- Department of Surgery, Heidelberg University Hospital (UKHD), Heidelberg, Germany
| | - Rienk Offringa
- German Cancer Research Center (DKFZ), Molecular Oncology of Gastrointestinal Tumors, Heidelberg, Germany
- Department of Surgery, Heidelberg University Hospital (UKHD), Heidelberg, Germany
| | - Mahmoud Moustafa
- Department of Radiation Oncology, Heidelberg University Hospital (UKHD), Heidelberg, Germany
- Faculty of Medicine Heidelberg (MFHD), Division of Molecular and Translational Radiation Oncology, Heidelberg, Germany
- German Cancer Consortium (DKTK) Core-Center Heidelberg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Clinical Pathology, Suez Canal University, Ismailia, Egypt
| | - Rainer Will
- German Cancer Research Center (DKFZ), Genomics and Proteomics Core Facility, Heidelberg, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital (UKHD), Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital (UKHD), Heidelberg, Germany
- Faculty of Medicine Heidelberg (MFHD), Division of Molecular and Translational Radiation Oncology, Heidelberg, Germany
- German Cancer Consortium (DKTK) Core-Center Heidelberg, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stephan Brons
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital (UKHD), Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, Heidelberg University Hospital (UKHD), Heidelberg, Germany.
- Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.
- Department of Radiation Oncology, Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital (UKHD), Heidelberg, Germany.
- Department of Radiation Oncology, University Medical Center Göttingen, Göttingen, Germany.
| | - Stefan B Eichmüller
- German Cancer Research Center (DKFZ), Research Group GMP & T Cell Therapy, Heidelberg, Germany.
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99
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Current and Future Perspectives of the Use of Organoids in Radiobiology. Cells 2020; 9:cells9122649. [PMID: 33317153 PMCID: PMC7764598 DOI: 10.3390/cells9122649] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/04/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023] Open
Abstract
The majority of cancer patients will be treated with radiotherapy, either alone or together with chemotherapy and/or surgery. Optimising the balance between tumour control and the probability of normal tissue side effects is the primary goal of radiation treatment. Therefore, it is imperative to understand the effects that irradiation will have on both normal and cancer tissue. The more classical lab models of immortal cell lines and in vivo animal models have been fundamental to radiobiological studies to date. However, each of these comes with their own limitations and new complementary models are required to fill the gaps left by these traditional models. In this review, we discuss how organoids, three-dimensional tissue-resembling structures derived from tissue-resident, embryonic or induced pluripotent stem cells, overcome the limitations of these models and thus have a growing importance in the field of radiation biology research. The roles of organoids in understanding radiation-induced tissue responses and in moving towards precision medicine are examined. Finally, the limitations of organoids in radiobiology and the steps being made to overcome these limitations are considered.
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100
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Rutherford H, Chacon A, Mohammadi A, Takyu S, Tashima H, Yoshida E, Nishikido F, Hofmann T, Pinto M, Franklin DR, Yamaya T, Parodi K, Rosenfeld AB, Guatelli S, Safavi-Naeini M. Dose quantification in carbon ion therapy using in-beam positron emission tomography. ACTA ACUST UNITED AC 2020; 65:235052. [DOI: 10.1088/1361-6560/abaa23] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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