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Naito E, Igawa K, Takada S, Haga K, Yortchan W, Suebsamarn O, Kobayashi R, Yamazaki M, Tanuma JI, Hamano T, Shimokawa T, Tomihara K, Izumi K. The effects of carbon-ion beam irradiation on three-dimensional in vitro models of normal oral mucosa and oral cancer: development of a novel tool to evaluate cancer therapy. In Vitro Cell Dev Biol Anim 2024:10.1007/s11626-024-00958-4. [PMID: 39110152 DOI: 10.1007/s11626-024-00958-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Accepted: 07/14/2024] [Indexed: 08/24/2024]
Abstract
Given that the original tumor microenvironment of oral cancer cannot be reproduced, predicting the therapeutic effects of irradiation using monolayer cultures and animal models of ectopic tumors is challenging. Unique properties of carbon-ion irradiation (CIR) characterized by the Bragg peak exert therapeutic effects on tumors and prevent adverse events in surrounding normal tissues. However, the underlying mechanism remains unclear. The biological effects of CIR were evaluated on three-dimensional (3D) in vitro models of normal oral mucosa (NOMM) and oral cancer (OCM3 and OCM4) consisting of HSC-3 and HSC-4 cells. A single 10- or 20-Gy dose of CIR was delivered to NOMM, OCM3, and OCM4 models. Histopathological and histomorphometric analyses and labeling indices for Ki-67, γH2AX, and TUNEL were examined after CIR. The concentrations of high mobility group box 1 (HMGB1) were measured. NOMM exhibited epithelial thinning after CIR, which could be caused by the decreased presence of Ki-67-labeled basal cells. The relative proportion of the thickness of cancer cells to the underlying stroma in cancer models decreased after CIR. This finding appeared to be supported by changes in the three labeling indices, indicating CIR-induced cancer cell death, mostly via apoptosis. Furthermore, the three indices and the HMGB1 release levels significantly differed among the OCM4 that received different doses and with different incubation times after CIR while those of the OCM3 models did not, suggesting more radiosensitivity in the OCM4. The three 3D in vitro models can be a feasible and novel tool to elucidate radiation biology.
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Affiliation(s)
- Eriko Naito
- Division of Biomimetics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Kazuyo Igawa
- Neutron Therapy Research Center, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Sho Takada
- Division of Biomimetics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Kenta Haga
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Witsanu Yortchan
- Division of Biomimetics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Orakarn Suebsamarn
- Children's Oral Health Department, Institute of Dentistry, Suranaree University of Technology, 111 University Avenue, Muang, Nakhon Ratchasima, 3000, Thailand
| | - Ryota Kobayashi
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Manabu Yamazaki
- Division of Oral Pathology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Jun-Ichi Tanuma
- Division of Oral Pathology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Tsuyoshi Hamano
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-Ku, Chiba, 263-8555, Japan
| | - Takashi Shimokawa
- Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-Ku, Chiba, 263-8555, Japan
| | - Kei Tomihara
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan
| | - Kenji Izumi
- Division of Biomimetics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-Ku, Niigata, 951-8514, Japan.
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Liu B, Zhou H, Tan L, Siu KTH, Guan XY. Exploring treatment options in cancer: Tumor treatment strategies. Signal Transduct Target Ther 2024; 9:175. [PMID: 39013849 PMCID: PMC11252281 DOI: 10.1038/s41392-024-01856-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 07/18/2024] Open
Abstract
Traditional therapeutic approaches such as chemotherapy and radiation therapy have burdened cancer patients with onerous physical and psychological challenges. Encouragingly, the landscape of tumor treatment has undergone a comprehensive and remarkable transformation. Emerging as fervently pursued modalities are small molecule targeted agents, antibody-drug conjugates (ADCs), cell-based therapies, and gene therapy. These cutting-edge treatment modalities not only afford personalized and precise tumor targeting, but also provide patients with enhanced therapeutic comfort and the potential to impede disease progression. Nonetheless, it is acknowledged that these therapeutic strategies still harbour untapped potential for further advancement. Gaining a comprehensive understanding of the merits and limitations of these treatment modalities holds the promise of offering novel perspectives for clinical practice and foundational research endeavours. In this review, we discussed the different treatment modalities, including small molecule targeted drugs, peptide drugs, antibody drugs, cell therapy, and gene therapy. It will provide a detailed explanation of each method, addressing their status of development, clinical challenges, and potential solutions. The aim is to assist clinicians and researchers in gaining a deeper understanding of these diverse treatment options, enabling them to carry out effective treatment and advance their research more efficiently.
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Affiliation(s)
- Beilei Liu
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, The University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong, China
| | - Hongyu Zhou
- Department of Clinical Oncology, The University of Hong Kong, Hong Kong, China
| | - Licheng Tan
- Department of Clinical Oncology, The University of Hong Kong, Hong Kong, China
| | - Kin To Hugo Siu
- Department of Clinical Oncology, The University of Hong Kong, Hong Kong, China
| | - Xin-Yuan Guan
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
- Department of Clinical Oncology, The University of Hong Kong, Hong Kong, China.
- State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, China.
- MOE Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou, China.
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Yang D, Zhu XR, Chen M, Ma L, Cheng X, Grosshans DR, Lu W, Shao Y. Investigation of intra-fractionated range guided adaptive proton therapy: I. On-line PET imaging and range measurement. Phys Med Biol 2024; 69:155005. [PMID: 38861997 DOI: 10.1088/1361-6560/ad56f4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 06/11/2024] [Indexed: 06/13/2024]
Abstract
Objective.Develop a prototype on-line positron emission tomography (PET) scanner and evaluate its capability of on-line imaging and intra-fractionated proton-induced radioactivity range measurement.Approach.Each detector consists of 32 × 32 array of 2 × 2 × 30 mm3Lutetium-Yttrium Oxyorthosilicate scintillators with single-scintillator-end readout through a 20 × 20 array of 3 × 3 mm2Silicon Photomultipliers. The PET can be configurated with a full-ring of 20 detectors for conventional PET imaging or a partial-ring of 18 detectors for on-line imaging and range measurement. All detector-level readout and processing electronics are attached to the backside of the system gantry and their output signals are transferred to a field-programable-gate-array based system electronics and data acquisition that can be placed 2 m away from the gantry. The PET imaging performance and radioactivity range measurement capability were evaluated by both the offline study that placed a radioactive source with known intensity and distribution within a phantom and the online study that irradiated a phantom with proton beams under different radiation and imaging conditions.Main results.The PET has 32 cm diameter and 6.5 cm axial length field-of-view (FOV), ∼2.3-5.0 mm spatial resolution within FOV, 3% sensitivity at the FOV center, 18%-30% energy resolution, and ∼9 ns coincidence time resolution. The offline study shows the PET can determine the shift of distal falloff edge position of a known radioactivity distribution with the accuracy of 0.3 ± 0.3 mm even without attenuation and scatter corrections, and online study shows the PET can measure the shift of proton-induced positron radioactive range with the accuracy of 0.6 ± 0.3 mm from the data acquired with a short-acquisition (60 s) and low-dose (5 MU) proton radiation to a human head phantom.Significance.This study demonstrated the capability of intra-fractionated PET imaging and radioactivity range measurement and will enable the investigation on the feasibility of intra-fractionated, range-shift compensated adaptive proton therapy.
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Affiliation(s)
- Dongxu Yang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75057, United States of America
| | - Xiaorong R Zhu
- Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX 77000, United States of America
| | - Mingli Chen
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75057, United States of America
| | - Lin Ma
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75057, United States of America
| | - Xinyi Cheng
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75057, United States of America
| | - David R Grosshans
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77000, United States of America
| | - Weiguo Lu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75057, United States of America
| | - Yiping Shao
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75057, United States of America
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Hänze J, Mengen LM, Mernberger M, Tiwari DK, Plagge T, Nist A, Subtil FSB, Theiss U, Eberle F, Roth K, Lauth M, Hofmann R, Engenhart-Cabillic R, Stiewe T, Hegele A. Transcriptomic response of prostate cancer cells to carbon ion and photon irradiation with focus on androgen receptor and TP53 signaling. Radiat Oncol 2024; 19:85. [PMID: 38956684 PMCID: PMC11218163 DOI: 10.1186/s13014-024-02480-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 06/21/2024] [Indexed: 07/04/2024] Open
Abstract
BACKGROUND Radiotherapy is essential in the treatment of prostate cancer. An alternative to conventional photon radiotherapy is the application of carbon ions, which provide a superior intratumoral dose distribution and less induced damage to adjacent healthy tissue. A common characteristic of prostate cancer cells is their dependence on androgens which is exploited therapeutically by androgen deprivation therapy in the advanced prostate cancer stage. Here, we aimed to analyze the transcriptomic response of prostate cancer cells to irradiation by photons in comparison to carbon ions, focusing on DNA damage, DNA repair and androgen receptor signaling. METHODS Prostate cancer cell lines LNCaP (functional TP53 and androgen receptor signaling) and DU145 (dysfunctional TP53 and androgen receptor signaling) were irradiated by photons or carbon ions and the subsequent DNA damage was assessed by immuno-cytofluorescence. Furthermore, the cells were treated with an androgen-receptor agonist. The effects of irradiation and androgen treatment on the gene regulation and the transcriptome were investigated by RT-qPCR and RNA sequencing, followed by bioinformatic analysis. RESULTS Following photon or carbon ion irradiation, both LNCaP and DU145 cells showed a dose-dependent amount of visible DNA damage that decreased over time, indicating occurring DNA repair. In terms of gene regulation, mRNAs involved in the TP53-dependent DNA damage response were significantly upregulated by photons and carbon ions in LNCaP but not in DU145 cells, which generally showed low levels of gene regulation after irradiation. Both LNCaP and DU145 cells responded to photons and carbon ions by downregulation of genes involved in DNA repair and cell cycle, partially resembling the transcriptome response to the applied androgen receptor agonist. Neither photons nor carbon ions significantly affected canonical androgen receptor-dependent gene regulation. Furthermore, certain genes that were specifically regulated by either photon or carbon ion irradiation were identified. CONCLUSION Photon and carbon ion irradiation showed a significant congruence in terms of induced signaling pathways and transcriptomic responses. These responses were strongly impacted by the TP53 status. Nevertheless, irradiation mode-dependent distinct gene regulations with undefined implication for radiotherapy outcome were revealed. Androgen receptor signaling and irradiations shared regulation of certain genes with respect to DNA-repair and cell-cycle.
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Affiliation(s)
- Jörg Hänze
- Department of Urology, Faculty of Medicine, Philipps University Marburg, Baldingerstraße, 35043, Marburg, Germany.
| | - Lilly M Mengen
- Department of Urology, Faculty of Medicine, Philipps University Marburg, Baldingerstraße, 35043, Marburg, Germany
| | - Marco Mernberger
- Institute of Molecular Oncology, Genomics Core Facility, Member of the German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Dinesh Kumar Tiwari
- Department of Radiotherapy and Radiooncology, Philipps University Marburg, Marburg, Germany
| | - Thomas Plagge
- Department of Urology, Faculty of Medicine, Philipps University Marburg, Baldingerstraße, 35043, Marburg, Germany
| | - Andrea Nist
- Institute of Molecular Oncology, Genomics Core Facility, Member of the German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Florentine S B Subtil
- Department of Radiotherapy and Radiooncology, Philipps University Marburg, Marburg, Germany
| | - Ulrike Theiss
- Department of Radiotherapy and Radiooncology, Philipps University Marburg, Marburg, Germany
- Marburg Ion-Beam Therapy Center (MIT), Department of Radiotherapy and Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Fabian Eberle
- Department of Radiotherapy and Radiooncology, Philipps University Marburg, Marburg, Germany
- Marburg Ion-Beam Therapy Center (MIT), Department of Radiotherapy and Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Katrin Roth
- Core Facility Cellular Imaging, Philipps University Marburg, Marburg, Germany
| | - Matthias Lauth
- Center for Tumor and Immune Biology, Philipps University Marburg, Marburg, Germany
| | - Rainer Hofmann
- Department of Urology, Faculty of Medicine, Philipps University Marburg, Baldingerstraße, 35043, Marburg, Germany
| | - Rita Engenhart-Cabillic
- Department of Radiotherapy and Radiooncology, Philipps University Marburg, Marburg, Germany
- Marburg Ion-Beam Therapy Center (MIT), Department of Radiotherapy and Radiation Oncology, Marburg University Hospital, Marburg, Germany
| | - Thorsten Stiewe
- Institute of Molecular Oncology, Genomics Core Facility, Member of the German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Axel Hegele
- Department of Radiotherapy and Radiooncology, Philipps University Marburg, Marburg, Germany
- Urological Center Mittelhessen, DRK Hospital Biedenkopf, Biedenkopf, Germany
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Yaddanapudi S, Wakisaka Y, Furutani KM, Yagi M, Shimizu S, Beltran CJ. Technical Note: Improving the workflow in a carbon ion therapy center with custom software for enhanced patient care. Tech Innov Patient Support Radiat Oncol 2024; 30:100251. [PMID: 38707713 PMCID: PMC11070275 DOI: 10.1016/j.tipsro.2024.100251] [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: 01/22/2024] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 05/07/2024] Open
Abstract
Carbon-ion radiation therapy (CIRT) is an up-and-coming modality for cancer treatment. Implementation of CIRT requires collaboration among specialists like radiation oncologists, medical physicists, and other healthcare professionals. Effective communication among team members is necessary for the success of CIRT. However, the current workflows involving data management, treatment planning, scheduling, and quality assurance (QA) can be susceptible to errors, leading to delays and decreased efficiency. With the aim of addressing these challenges, a team of medical physicists developed an in-house workflow management software using FileMaker Pro. This tool has streamlined the workflow and improved the efficiency and quality of patient care.
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Affiliation(s)
| | - Yushi Wakisaka
- Department of Medical Physics and Engineering, Osaka University, Osaka, Japan
- Department of Radiation Technology, Osaka Heavy Ion Therapy Center, Osaka, Japan
| | - Keith M. Furutani
- Department of Radiation Oncology, Mayo Clinic, Jacksonville, FL, USA
- Department of Carbon Ion Radiotherapy, Osaka University, Osaka, Japan
| | - Masashi Yagi
- Department of Carbon Ion Radiotherapy, Osaka University, Osaka, Japan
| | - Shinichi Shimizu
- Department of Carbon Ion Radiotherapy, Osaka University, Osaka, Japan
| | - Chris J. Beltran
- Department of Radiation Oncology, Mayo Clinic, Jacksonville, FL, USA
- Department of Carbon Ion Radiotherapy, Osaka University, Osaka, Japan
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Koosha F, Ahmadikamalabadi M, Mohammadi M. Review of Recent Improvements in Carbon Ion Radiation Therapy in the Treatment of Glioblastoma. Adv Radiat Oncol 2024; 9:101465. [PMID: 38770179 PMCID: PMC11103612 DOI: 10.1016/j.adro.2024.101465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 01/11/2024] [Indexed: 05/22/2024] Open
Abstract
Purpose This article provides an overview of the physical and biologic properties of carbon ions, followed by an examination of the latest clinical outcomes in patients with glioma who have received carbon ion radiation therapy. Methods and Materials According to thee articles that have been reviewed, glioma represents the predominant form of neoplastic growth in the brain, accounting for approximately 51% of all malignancies affecting the nervous system. Currently, high-grade glioma, specifically glioblastoma, comprises 15% of cases and is associated with a high mortality rate. The development of novel drugs for the treatment of high-grade tumors has been impeded by various factors, such as the blood-brain barrier and tumor heterogeneity, despite numerous endeavors. According to the definition of tumor grade established by the World Health Organization, the conventional treatment involves surgical resection followed by adjuvant radiation and chemotherapy. Despite numerous attempts in photon radiation therapy to apply the highest possible dose to the tumor site while minimizing damage to healthy tissue, there has been no success in increasing patient survival. The primary cause of resistance to conventional radiation therapy methods, namely x-ray and gamma-ray, is attributed to the survival of radio-resistant glioma stem cells, which have the potential to trigger a recurrence of tumors. Particle beams, such as protons and carbon ions, can deposit the highest dose to a confined region, thus offering a more accurate dose distribution compared with photon beams. Results Carbon ions exhibit higher linear energy transfer and relative biologic effectiveness compared with photons, potentially enabling them to overcome radio-resistant tumor cells. Conclusions Therefore, it can be hypothesized that carbon ion radiation therapy may show superior efficacy in destroying neoplastic cells with reduced negative outcomes compared with x-ray radiation therapy.
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Affiliation(s)
- Fereshteh Koosha
- Department of Radiology Technology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdieh Ahmadikamalabadi
- Social Determinants of Health Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Radiology Department, School of Paramedical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Mohadesseh Mohammadi
- Department of Radiology Technology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Weusthof K, Held T, Lang K, Rachel ZE, Harrabi SB, Plath K, Freudlsperger C, Herfarth K, Debus J, Haberer T, Münter M, Jensen AD, Adeberg S. Combined Photon and Carbon Ion Radiation Therapy for Sinonasal Malignancies: Results of the HIT-SNT Prospective Phase 2 Trial. Int J Radiat Oncol Biol Phys 2024; 118:1563-1574. [PMID: 37866761 DOI: 10.1016/j.ijrobp.2023.09.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE Radiation treatment of sinonasal malignancies is a challenging task due to proximity to critical structures of the head and neck and skull base. Local tumor control is highly dose-dependent, but dose application is limited due to accompanying toxicity and dose constraints. To evaluate the toxicity and efficacy of combined radiation treatment with intensity-modulated radiation therapy (IMRT) and carbon ion boost, we conducted a prospective phase 2 IMRT-Heidelberg Ion-Beam Therapy Sinonasal Tumors (HIT-SNT) trial. METHODS AND MATERIALS Between 2011 and 2019, we treated 35 patients with histologically proven, incompletely resected or inoperable adeno- (51%) or squamous cell carcinoma (49%) of the paranasal sinuses with combined IMRT (50 Gy) and carbon ion boost (24 Gy relative biologic effectiveness) to a total dose of 74 Gy. RESULTS Acute mucositis Common Terminology Criteria for Adverse Events (CTCAE) grade 3 occurred in 12% of patients (n = 4) and was accompanied by odynophagia CTCAE grade 3. Except for 1 case of grade 3 weight loss, no other acute high-grade toxicity (grade 3-4) was observed. In a small patient cohort of 15 patients eligible for long-term follow-up we have seen no high-grade (grade ≥3) long-term side effects 2 years after radiation therapy. None of these patients suffered from therapy-associated vision or hearing loss. Secondary endpoints were 2-year overall survival, 2-year local progression-free survival, 2-year progression-free survival, and 2-year metastases-free survival with 79.4%, 61.8%, 61.8%, and 64.8%, respectively. CONCLUSIONS To our knowledge, this is the first prospective data on toxicity and outcome of bimodal radiation therapy for the rare entity of sinonasal malignancies. Our study shows a low rate of CTCAE-reported acute toxicity with reasonable tumor control and survival rates after bimodal radiation therapy, which therefore remains a therapy approach to be further evaluated.
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Affiliation(s)
- Katharina Weusthof
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany.
| | - Thomas Held
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Kristin Lang
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Zoe E Rachel
- Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany
| | - Semi B Harrabi
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | | | | | - Klaus Herfarth
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Jürgen Debus
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Thomas Haberer
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Marc Münter
- Department of Radiation Oncology, Klinikum Stuttgart, Stuttgart, Germany
| | | | - Sebastian Adeberg
- National Center for Tumor Disease (NCT), University Hospital Heidelberg (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Radiation Oncology, University Hospital Heidelberg (UKHD), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany; Department of Radiotherapy and Radiation Oncology and; Marburg Ion-Beam Therapy Center (MIT), Department of Radiotherapy and Radiation Oncology, Marburg University Hospital, Marburg, Germany; UCT - Universitäres Centrum für Tumorerkrankungen Frankfurt-Marburg
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Takakusagi Y, Koge H, Kano K, Shima S, Tsuchida K, Mizoguchi N, Yoshida D, Kamada T, Katoh H. Five-year clinical outcomes of scanning carbon-ion radiotherapy for prostate cancer. PLoS One 2024; 19:e0290617. [PMID: 38457424 PMCID: PMC10923478 DOI: 10.1371/journal.pone.0290617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 08/12/2023] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Carbon-ion radiotherapy (CIRT) has been associated with favorable clinical outcomes in patients with prostate cancer. At our facility, all patients are treated using scanning CIRT (sCIRT). We retrospectively analyzed five-year clinical outcomes of prostate cancer treated with sCIRT to investigate treatment efficacy and toxicity. METHODS In this study, we included 253 consecutive prostate cancer patients treated with sCIRT at the Kanagawa Cancer Center from December 2015 to December 2017. The total dose of sCIRT was set at 51.6 Gy (relative biological effect) in 12 fractions over three weeks. We employed the Phoenix definition for biochemical relapse. The overall survival (OS), biochemical relapse-free (bRF) rate, and cumulative incidence of late toxicity were estimated using the Kaplan-Meier method. Toxicity was assessed using the Common Terminology Criteria for Adverse Events version 4.0. RESULTS The median age of the patients was 70 years (range: 47-86 years). The median follow-up duration was 61.1 months (range: 4.1-80.3 months). Eight (3.2%), 88 (34.8%), and 157 (62.1%) patients were in the low-risk, intermediate-risk, and high-risk groups, respectively, according to the D'Amico classification system. The five-year OS and bRF were 97.5% and 93.3%, respectively. The five-year bRF rates for the low-risk, intermediate-risk, and high-risk groups were 87.5%, 93.7%, and 93.4%, respectively (p = 0.7215). The five-year cumulative incidence of Grade 2 or more late genitourinary and gastrointestinal toxicity was 7.4% and 1.2%, respectively. CONCLUSION The results of this study show that sCIRT has a favorable therapeutic effect and low toxicity in the treatment of prostate cancer.
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Affiliation(s)
- Yosuke Takakusagi
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
- Department of Radiation Oncology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Hiroaki Koge
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Kio Kano
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Satoshi Shima
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Keisuke Tsuchida
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Nobutaka Mizoguchi
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Daisaku Yoshida
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Tadashi Kamada
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Hiroyuki Katoh
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
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Aoki S, Ishikawa H, Nakajima M, Yamamoto N, Mori S, Wakatsuki M, Okonogi N, Murata K, Tada Y, Mizobuchi T, Yoshino I, Yamada S. Long-Term Outcomes of Ablative Carbon-Ion Radiotherapy for Central Non-Small Cell Lung Cancer: A Single-Center, Retrospective Study. Cancers (Basel) 2024; 16:933. [PMID: 38473295 DOI: 10.3390/cancers16050933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/14/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
The aim of this study is to assess the efficacy and safety of ablative carbon ion radiotherapy (CIRT) for early stage central non-small cell lung cancer (NSCLC). We retrospectively reviewed 30 patients who had received CIRT at 68.4 Gy in 12 fractions for central NSCLC in 2006-2019. The median age was 75 years, and the median Karnofsky Performance Scale score was 90%. All patients had concomitant chronic obstructive pulmonary disease, and 20 patients (67%) were considered inoperable. In DVH analysis, the median lung V5 and V20 were 15.5% and 10.4%, and the median Dmax, D0.5cc, D2cc of proximal bronchial tree was 65.6 Gy, 52.8 Gy, and 10.0 Gy, respectively. At a median follow-up of 43 months, the 3-year overall survival, disease-specific survival, and local control rates were 72.4, 75.8, and 88.7%, respectively. Two patients experienced grade 3 pneumonitis, but no grade ≥3 adverse events involving the mediastinal organs occurred. Ablative CIRT is feasible and effective for central NSCLC and could be considered as a treatment option, especially for patients who are intolerant of other curative treatments.
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Affiliation(s)
- Shuri Aoki
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
- Department of Radiology, University of Tokyo Hospital, 3-7-1 Hongo, Tokyo 113-8655, Japan
| | - Hitoshi Ishikawa
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Mio Nakajima
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Naoyoshi Yamamoto
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Shinichiro Mori
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Masaru Wakatsuki
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Noriyuki Okonogi
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
- Department of Radiation Oncology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Tokyo 113-8421, Japan
| | - Kazutoshi Murata
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Yuji Tada
- Department of Pulmonary Medicine, International University of Health and Welfare, Narita Hospital, Hatakeda 852, Chiba 286-8520, Japan
| | - Teruaki Mizobuchi
- Department of Respiratory Surgery, Social Welfare Organization Saiseikai Imperial Gift Foundation, Chibaken Saiseikai Narashino Hospital, 1-1-1 Izumi-cho, Chiba 275-8580, Japan
| | - Ichiro Yoshino
- Department of Thoracic Surgery, International University of Health and Welfare, Narita Hospital, Hatakeda 852, Chiba 286-8520, Japan
| | - Shigeru Yamada
- QST Hospital, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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Metzner M, Zhevachevska D, Schlechter A, Kehrein F, Schlecker J, Murillo C, Brons S, Jäkel O, Martišíková M, Gehrke T. Energy painting: helium-beam radiography with thin detectors and multiple beam energies. Phys Med Biol 2024; 69:055002. [PMID: 38295403 DOI: 10.1088/1361-6560/ad247e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 01/31/2024] [Indexed: 02/02/2024]
Abstract
Objective.Compact ion imaging systems based on thin detectors are a promising prospect for the clinical environment since they are easily integrated into the clinical workflow. Their measurement principle is based on energy deposition instead of the conventionally measured residual energy or range. Therefore, thin detectors are limited in the water-equivalent thickness range they can image with high precision. This article presents ourenergy paintingmethod, which has been developed to render high precision imaging with thin detectors feasible even for objects with larger, clinically relevant water-equivalent thickness (WET) ranges.Approach.A detection system exclusively based on pixelated silicon Timepix detectors was used at the Heidelberg ion-beam therapy center to track single helium ions and measure their energy deposition behind the imaged object. Calibration curves were established for five initial beam energies to relate the measured energy deposition to WET. They were evaluated regarding their accuracy, precision and temporal stability. Furthermore, a 60 mm × 12 mm region of a wedge phantom was imaged quantitatively exploiting the calibrated energies and five different mono-energetic images. These mono-energetic images were combined in a pixel-by-pixel manner by averaging the WET-data weighted according to their single-ion WET precision (SIWP) and the number of contributing ions.Main result.A quantitative helium-beam radiograph of the wedge phantom with an average SIWP of 1.82(5) % over the entire WET interval from 150 mm to 220 mm was obtained. Compared to the previously used methodology, the SIWP improved by a factor of 2.49 ± 0.16. The relative stopping power value of the wedge derived from the energy-painted image matches the result from range pullback measurements with a relative deviation of only 0.4 %.Significance.The proposed method overcomes the insufficient precision for wide WET ranges when employing detection systems with thin detectors. Applying this method is an important prerequisite for imaging of patients. Hence, it advances detection systems based on energy deposition measurements towards clinical implementation.
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Affiliation(s)
- Margareta Metzner
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
- Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Daria Zhevachevska
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
- Heidelberg University, Medical Faculty Mannheim, Heidelberg, Germany
| | - Annika Schlechter
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
- Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Florian Kehrein
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
- Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Julian Schlecker
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Radiooncology/Radiobiology, Germany
| | - Carlos Murillo
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiology, Germany
| | - Stephan Brons
- Heidelberg Ion-Beam Therapy Center (HIT), Radiation Oncology - Heidelberg University Hospital, Heidelberg, Germany
| | - Oliver Jäkel
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Radiation Oncology - Heidelberg University Hospital, Heidelberg, Germany
| | - Mária Martišíková
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
| | - Tim Gehrke
- Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Research in Radiation Oncology (NCRO), Heidelberg, Germany
- German Cancer Research Center (DKFZ) Heidelberg, Division of Medical Physics in Radiation Oncology, Germany
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
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11
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Jang JY, Kim K, Chen M, Akimoto T, Wang MLC, Kim M, Kim K, Lee TH, Yoo GS, Park HC. A meta-analysis comparing efficacy and safety between proton beam therapy versus carbon ion radiotherapy. Cancer Med 2024; 13:e7023. [PMID: 38396380 PMCID: PMC10891363 DOI: 10.1002/cam4.7023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND This study aimed to compare the outcomes of proton beam therapy (PBT) and carbon ion radiotherapy (CIRT) by a systematic review and meta-analysis of the existing clinical evidence. METHODS A systematic literature search was performed to identify studies comparing the clinical outcomes of PBT and CIRT. The included studies were required to report oncological outcomes (local control [LC], progression-free survival [PFS], or overall survival [OS]) or adverse events. RESULTS Eighteen articles comprising 1857 patients (947 treated with PBT and 910 treated with CIRT) were included in the analysis. The pooled analysis conducted for the overall population yielded average hazard ratios of 0.690 (95% confidence interval (CI), 0.493-0.967, p = 0.031) for LC, 0.952 (95% CI, 0.604-1.500, p = 0.590) for PFS, and 1.183 (0.872-1.607, p = 0.281) for OS with reference to CIRT. The subgroup analyses included patients treated in the head and neck, areas other than the head and neck, and patients with chordomas and chondrosarcomas. These analyses revealed no significant differences in most outcomes, except for LC in the subgroup of patients treated in areas other than the head and neck. Adverse event rates were comparable in both groups, with an odds ratio (OR) of 1.097 (95% CI, 0.744-1.616, p = 0.641). Meta-regression analysis for possible heterogeneity did not demonstrate a significant association between treatment outcomes and the ratio of biologically effective doses between modalities. CONCLUSION This study highlighted the comparability of PBT and CIRT in terms of oncological outcomes and adverse events.
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Affiliation(s)
- Jeong Yun Jang
- Department of Radiation Oncology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Kangpyo Kim
- Department of Radiation Oncology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Miao‐Fen Chen
- Department of Radiation OncologyChang Gung Memorial HospitalTaoyuanTaiwan
| | - Tetsuo Akimoto
- Division of Radiation Oncology and Particle TherapyNational Cancer Center Hospital EastChibaJapan
- Department of Radiation OncologyNational Cancer Center Hospital EastChibaJapan
| | | | - Min‐Ji Kim
- Biomedical Statistics Center, Research Institute for Future MedicineSamsung Medical CenterSeoulRepublic of Korea
| | - Kyunga Kim
- Biomedical Statistics Center, Research Institute for Future MedicineSamsung Medical CenterSeoulRepublic of Korea
| | - Tae Hoon Lee
- Department of Radiation Oncology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Gyu Sang Yoo
- Department of Radiation Oncology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Radiation OncologyChungbuk National University HospitalCheongjuRepublic of Korea
| | - Hee Chul Park
- Department of Radiation Oncology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
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Li XJ, Li CR, Ye YC, Zhang YS, Zong XQ, Feng CL. A Dosimetric Comparative Study of Carbon-Ion Radiotherapy Versus X-ray Volumetric Modulated Arc Therapy for Stage III Non-Small-Cell Lung Cancer. Niger J Clin Pract 2024; 27:236-243. [PMID: 38409153 DOI: 10.4103/njcp.njcp_734_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/15/2023] [Indexed: 02/28/2024]
Abstract
BACKGROUND Compared to photon beam, carbon-ion radiotherapy (CIRT) has both physical and biological advantages. AIM To examine whether two-dimensional (2D) CIRT is dosimetrically superior to photon beam volume-modulated arc therapy (VMAT) in protecting the normal tissues for stage III non-small-cell lung cancer (NSCLC). SUBJECTS AND METHODS A retrospective study was conducted. Thirteen patients with stage III NSCLC treated in our center with curative CIRT and a sham photon beam VMAT treatment planning with the same normal tissue dose constraints were included for analysis. Target dose distributions and the homogeneity index (HI) within the planning target volumes were compared. RESULTS Both CIRT and VMAT plans have good tumor coverage with no significant differences in D98, D95, and D50 of Planning target volume 1 (PTV1) between the two plans. The HIs between the two plans are similar. The HI of PTV2 is superior in the CIRT plan (CIRT vs. VMAT: 0.08 vs. 0.16, P < 0.05). In general, CIRT results in a lower dose of the organ-at-risk (OAR) than the photon plans. The V5, V10, V20, V30, V40, and Dmean of the contralateral lung in the CIRT plan are significantly lower than that of the photon VMAT. For the ipsilateral lung, the V5 of CIRT is significantly lower. The CIRT also had significantly lower spinal cord Dmax, esophageal Dmean and V50, V10 and V30 of bone, and V50 of the trachea and bronchial tree. CONCLUSIONS Compared with photon VMAT, 2D-CIRT using the passive beam scanning technique significantly reduces the radiation dose to the OARs in curative radiotherapy of stage III NSCLC, suggesting a better protection of the normal tissues.
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Affiliation(s)
- X-J Li
- Heavy Ion Radiotherapy Department, Wuwei Cancer Hospital and Institute, Wuwei Academy of Medical Sciences, Wuwei, Gansu, China
| | - C-R Li
- Radiotherapy Center, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Y-C Ye
- Heavy Ion Radiotherapy Department, Wuwei Cancer Hospital and Institute, Wuwei Academy of Medical Sciences, Wuwei, Gansu, China
| | - Y-S Zhang
- Heavy Ion Radiotherapy Department, Wuwei Cancer Hospital and Institute, Wuwei Academy of Medical Sciences, Wuwei, Gansu, China
| | - X-Q Zong
- Heavy Ion Radiotherapy Department, Wuwei Cancer Hospital and Institute, Wuwei Academy of Medical Sciences, Wuwei, Gansu, China
| | - C L Feng
- Heavy Ion Radiotherapy Department, Wuwei Cancer Hospital and Institute, Wuwei Academy of Medical Sciences, Wuwei, Gansu, China
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13
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Xuan L, Bai C, Ju Z, Luo J, Guan H, Zhou PK, Huang R. Radiation-targeted immunotherapy: A new perspective in cancer radiotherapy. Cytokine Growth Factor Rev 2024; 75:1-11. [PMID: 38061920 DOI: 10.1016/j.cytogfr.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 02/16/2024]
Abstract
In contemporary oncology, radiation therapy and immunotherapy stand as critical treatments, each with distinct mechanisms and outcomes. Radiation therapy, a key player in cancer management, targets cancer cells by damaging their DNA with ionizing radiation. Its effectiveness is heightened when used alongside other treatments like surgery and chemotherapy. Employing varied radiation types like X-rays, gamma rays, and proton beams, this approach aims to minimize damage to healthy tissue. However, it is not without risks, including potential damage to surrounding normal cells and side effects ranging from skin inflammation to serious long-term complications. Conversely, immunotherapy marks a revolutionary step in cancer treatment, leveraging the body's immune system to target and destroy cancer cells. It manipulates the immune system's specificity and memory, offering a versatile approach either alone or in combination with other treatments. Immunotherapy is known for its targeted action, long-lasting responses, and fewer side effects compared to traditional therapies. The interaction between radiation therapy and immunotherapy is intricate, with potential for both synergistic and antagonistic effects. Their combined use can be more effective than either treatment alone, but careful consideration of timing and sequence is essential. This review explores the impact of various radiation therapy regimens on immunotherapy, focusing on changes in the immune microenvironment, immune protein expression, and epigenetic factors, emphasizing the need for personalized treatment strategies and ongoing research to enhance the efficacy of these combined therapies in cancer care.
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Affiliation(s)
- Lihui Xuan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China; Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Chenjun Bai
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Zhao Ju
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China; Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Jinhua Luo
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China; Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Hua Guan
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Ping-Kun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
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14
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Feng S, Luo H, Li C, Geng Y, Yang Z, Zhao X, Wang L, Liu R, Zhang Y, Che T, Zhang Q, Wang X. Regulatory role of RGMb in lung injury promoted by the combination of carbon ion irradiation and anti-PD-1 antibody through Erk1/2 and p38 MAPK pathways. Biochem Biophys Res Commun 2024; 691:149334. [PMID: 38042034 DOI: 10.1016/j.bbrc.2023.149334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 12/04/2023]
Abstract
The combination of carbon ion radiotherapy and anti-PD-1 antibody represents a new approach to treating thoracic tumors. However, the lung damage caused by this combination therapy may limit its use, and the potential mechanisms for this are worthy of investigation. The objective of this research was to examine the potential involvement of repulsive guidance molecule b (RGMb) in lung damage promoted by the utilization of carbon ion irradiation combined with an anti-PD-1 antibody. The C57BL/6 mice have been randomly separated into four distinct groups: control, anti-PD-1, whole thorax carbon ion irradiation, and irradiation in combination with anti-PD-1 treatment groups (combination group). Detection of pathological changes in lung tissue using HE staining. Detection of pulmonary fibrosis by Masson staining and the hydroxyproline assay. ELISA to detect TNF-α, TGF-β, IL-6, and IL-1β expression levels within lung homogenates. The expression of RGMb, p38 MAPK, and Erk1/2 pathways was detected using a fully automated digital Western blotting system WES (ProteinSimple, USA). Flow cytometry was employed to analyze tissue-resident memory T cells (TRM) within the lung. Subsequently, the siRNA gene was employed to induce the downregulation of RGMb in mice in order to validate the involvement of RGMb in radiation-immune lung injury. The present study observed a significant increase in both inflammatory and fibrotic indicators within the mice group's lung tissue that received the combination treatment. The combination group exhibited elevated levels of TGF-β, TNF-α, IL-6, and IL-1β in lung homogenates. Anti-PD-1 antibody and carbon ion irradiation, upregulated RGMb, phospho-p38 MAPK and phospho-Erk1/2. The results obtained from the flow cytometry analysis indicated that the combination group was significantly higher in the number of clonal expansion TRMs, which were predominantly characterized by the expression of CD8+CD103+CD69-TRMs. The downregulate of RGMb via siRNA in mice resulted in a decrease in phospho-p38 MAPK and phospho-Erk1/2. The combination group exhibited a reduction in TNF-α, TGF-β, IL-6, and IL-1β in their lung tissues, and the number of CD8+CD103+CD69-TRM was significantly reduced. The combination group exhibited a significant improvement in inflammatory and fibrotic indicators within the lung tissues. Anti-PD-1 antibody and carbon ion irradiation synergistically regulate RGMb, leading to strong clonal expansion of lung TRM through the p38 MAPK and Erk1/2 pathways. The present study offers valuable insights into the treatment of lung injury due to the combined administration of carbon ion radiotherapy and anti-PD-1 antibody therapy.
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Affiliation(s)
- Shuangwu Feng
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
| | - Hongtao Luo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Chengcheng Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
| | - Yichao Geng
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
| | - Zhen Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China; Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, China.
| | - Xueshan Zhao
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
| | - Lina Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
| | - Ruifeng Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Yanying Zhang
- Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, China.
| | - Tuanjie Che
- Key Laboratory of Functional Genomics and Molecular Diagnosis of Gansu Province, Lanzhou, Gansu, China.
| | - Qiuning Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Xiaohu Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China; University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Functional Genomics and Molecular Diagnosis of Gansu Province, Lanzhou, Gansu, China.
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15
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Zhao Z, Song Z, Wang Z, Zhang F, Ding Z, Fan T. Advances in Molecular Pathology, Diagnosis and Treatment of Spinal Cord Astrocytomas. Technol Cancer Res Treat 2024; 23:15330338241262483. [PMID: 39043042 PMCID: PMC11271101 DOI: 10.1177/15330338241262483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 07/25/2024] Open
Abstract
Spinal cord astrocytoma (SCA) is a rare subtype of astrocytoma, posing challenges in diagnosis and treatment. Low-grade SCA can achieve long-term survival solely through surgery, while high-grade has a disappointing prognosis even with comprehensive treatment. Diagnostic criteria and standard treatment of intracranial astrocytoma have shown obvious limitations in SCA. Research on the molecular mechanism in SCA is lagging far behind that on intracranial astrocytoma. In recent years, huge breakthroughs have been made in molecular pathology of astrocytoma, and novel techniques have emerged, including DNA methylation analysis and radiomics. These advances are now making it possible to provide a precise diagnosis and develop corresponding treatment strategies in SCA. Our aim is to review the current status of diagnosis and treatment of SCA, and summarize the latest research advancement, including tumor subtype, molecular characteristics, diagnostic technology, and potential therapy strategies, thus deepening our understanding of this uncommon tumor type and providing guidance for accurate diagnosis and treatment.
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Affiliation(s)
- Zijun Zhao
- Spine Center, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Zihan Song
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zairan Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Fan Zhang
- Spine Center, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Ze Ding
- Spine Center, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Tao Fan
- Spine Center, Sanbo Brain Hospital, Capital Medical University, Beijing, China
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16
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Komatsu S, Wang T, Terashima K, Demizu Y, Anzai M, Suga M, Yamashita T, Suzuki O, Okimoto T, Sasaki R, Fukumoto T. Innovative Combination Treatment to Expand the Indications of Particle Therapy: Spacer Placement Surgery Using Bio-Absorbable Polyglycolic Acid Spacer. J Am Coll Surg 2024; 238:119-128. [PMID: 37737669 DOI: 10.1097/xcs.0000000000000873] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
BACKGROUND Particle therapy has favorable dose distribution and high curability. However, radiotherapy for malignant tumors adjacent to the gastrointestinal tract is contraindicated owing to its low tolerance. To overcome this, combination treatment with surgery to make a space between the tumor and adjacent gastrointestinal tract followed by particle therapy has been developed. Several materials have been used for the spacer and recently, we developed the absorbable polyglycolic acid (PGA) spacer, which has been used since 2019. This study is the first report of consecutive case series of spacer placement surgery using the PGA spacer. STUDY DESIGN Fifty consecutive patients undergoing spacer placement surgery with the PGA spacer were evaluated. Postoperative laboratory data, morbidity related to the treatment, and spacer volume after treatment were evaluated. RESULTS There were no treatment-related deaths, and all but 2 patients completed combination treatment. The median ratios of postoperative PGA spacer volume to the pretreatment volume were 96.9%, 87.7%, and 74.6% at weeks 2, 4, and 8, respectively. The spacer volume was maintained at 80% at 7 weeks and was predicted to be 50% at 15 weeks and 20% in 24 weeks. CONCLUSIONS Spacer placement surgery using the PGA spacer was feasible and tolerable. The PGA spacers maintained sufficient thickness during the duration of subsequent particle therapy. Combination treatment using the PGA spacer is innovative and has the potential to become a new standard curative local treatment.
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Affiliation(s)
- Shohei Komatsu
- From the Department of Surgery, Divisions of Hepato-Biliary-Pancreatic Surgery (Komatsu, Fukumoto), Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Tianyuan Wang
- Departments of Radiation Physics (Wang, Suga), Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Kazuki Terashima
- Radiology (Terashima, Demizu, Okimoto), Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Yusuke Demizu
- Radiology (Terashima, Demizu, Okimoto), Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
- Departments of Radiation Oncology (Demizu), Hyogo Ion Beam Medical Center Kobe Proton Center, Kobe, Hyogo, Japan
| | - Makoto Anzai
- Osaka Heavy Ion Therapy Center, Osaka, Japan (Anzai, Suzuki)
| | - Masaki Suga
- Departments of Radiation Physics (Wang, Suga), Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Tomohiro Yamashita
- Radiation Physics (Yamashita), Hyogo Ion Beam Medical Center Kobe Proton Center, Kobe, Hyogo, Japan
| | - Osamu Suzuki
- Osaka Heavy Ion Therapy Center, Osaka, Japan (Anzai, Suzuki)
| | - Tomoaki Okimoto
- Radiology (Terashima, Demizu, Okimoto), Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Ryohei Sasaki
- Radiation Oncology (Sasaki), Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takumi Fukumoto
- From the Department of Surgery, Divisions of Hepato-Biliary-Pancreatic Surgery (Komatsu, Fukumoto), Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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Ma N, Ming X, Chen J, Wu KL, Lu J, Jiang G, Mao J. Dosimetric rationale and preliminary experience in proton plus carbon-ion radiotherapy for esophageal carcinoma: a retrospective analysis. Radiat Oncol 2023; 18:195. [PMID: 38041122 PMCID: PMC10693034 DOI: 10.1186/s13014-023-02371-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 10/29/2023] [Indexed: 12/03/2023] Open
Abstract
BACKGROUND Concurrent chemoradiotherapy has been standard of care for unresectable esophageal carcinoma. There were no reports on proton radiotherapy (PRT) plus carbon-ion radiotherapy (CIRT) with pencil beam scanning (PBS) for esophageal carcinoma. This study evaluated the tolerability and efficiency of proton and sequential carbon-ion boost radiotherapy for esophageal carcinoma. METHODS From April 2017 to July 2020, 20 patients with primary esophageal carcinoma at stages II-IV were treated with PRT plus sequential CIRT with PBS. A median relative biological effectiveness-weighted PRT dose of 50 Gy in 25 fractions, and a sequential CIRT dose of 21 Gy in 7 fractions were delivered. Respiratory motion management was used if the tumor moved > 5 mm during the breathing cycle. A dosimetric comparison of photon intensity-modulated radiotherapy (IMRT), PRT, and CIRT was performed. The median times and rates of survivals were estimated using the Kaplan-Meier method. Comparison of the dose-volume parameters of the organs at risk employed the Wilcoxon matched-pairs test. RESULTS Twenty patients (15 men and 5 women, median age 70 years) were included in the analysis. With a median follow-up period of 25.0 months, the 2-year overall survival and progression-free survival rates were 69.2% and 57.4%, respectively. The patients tolerated radiotherapy and chemotherapy well. Grades 1, 2, 3, and 4 acute hematological toxicities were detected in 25%, 30%, 10%, and 30% of patients, respectively. Grades 3-5 acute non-hematological toxicities were not observed. Late toxicity events included grades 1, 2, and 3 in 50%, 20%, and 10% (pulmonary and esophageal toxicity in each) of patients. Grades 4-5 late toxicities were not noted. PRT or CIRT produced lower doses to organs at risk than did photon IMRT, especially the maximum dose delivered to the spinal cord and the mean doses delivered to the lungs and heart. CONCLUSIONS PRT plus CIRT with PBS appears to be a safe and effective treatment for esophageal carcinoma. PRT and CIRT delivered lower doses to organs at risk than did photon IMRT. Further investigation is warranted.
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Affiliation(s)
- Ningyi Ma
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kang Xin Road, Shanghai, 201315, China
| | - Xue Ming
- Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Jian Chen
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kang Xin Road, Shanghai, 201315, China
| | - Kai-Liang Wu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kang Xin Road, Shanghai, 201315, China
| | - Jiade Lu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kang Xin Road, Shanghai, 201315, China
| | - Guoliang Jiang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kang Xin Road, Shanghai, 201315, China
| | - Jingfang Mao
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai Key Laboratory of radiation oncology (20dz2261000), Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kang Xin Road, Shanghai, 201315, China.
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Dong YC, Nieves LM, Hsu JC, Kumar A, Bouché M, Krishnan U, Mossburg KJ, Saxena D, Uman S, Kambayashi T, Burdick JA, Kim MM, Dorsey JF, Cormode DP. Novel Combination Treatment for Melanoma: FLASH Radiotherapy and Immunotherapy Delivered by a Radiopaque and Radiation Responsive Hydrogel. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:9542-9551. [PMID: 38933522 PMCID: PMC11198981 DOI: 10.1021/acs.chemmater.3c01390] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Immunotherapies have become the standard treatment for melanoma. To further improve patient responses, combinations of immunotherapies and radiotherapy (RT) are being studied, since radiotherapies can potentially provide additional immune stimulation, in addition to direct antitumor effects. FLASH-RT is a novel, ultrahigh dose rate, radiation delivery approach, with the potential of at least equivalent tumor control efficacy and reduced damage to healthy tissue. However, the effects of combining FLASH-RT and immunotherapy have not been extensively studied in melanoma. Toll-like receptor (TLR) agonists, such as imiquimod (IMQ), are potent immunostimulatory agents, although their utility is limited due to poor solubility and systemic side effects. We therefore developed a novel combination therapy for melanoma consisting of IMQ delivered to the tumor via a radiopaque and radiation responsive hydrogel combined with FLASH-RT. We found that FLASH was able to effectively stimulate IMQ release from the hydrogel. In addition, we found that the combination of FLASH and released IMQ resulted in synergistic melanoma cell killing in vitro. The combination therapy reduced tumor growth compared to controls, enhanced survival, and resulted in remarkable enhancements in certain tumor cytokine levels. CT imaging allowed the hydrogel to be monitored in vivo. In addition, no adverse effects of the treatment were observed. Overall, this IMQ-gel and FLASH-RT combination may have potential as an improved treatment for melanoma and indicates that the interactions of FLASH-RT and TLR agonists merit further study.
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Affiliation(s)
- Yuxi C Dong
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States; Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Lenitza M Nieves
- Department of Biochemistry and Molecular Biophysics, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jessica C Hsu
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States; Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Ananyaa Kumar
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | | | - Uma Krishnan
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Katherine J Mossburg
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States; Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Deeksha Saxena
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Selen Uman
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Taku Kambayashi
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States; Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Michele M Kim
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jay F Dorsey
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - David P Cormode
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States; Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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Fujinaka R, Komatsu S, Terashima K, Demizu Y, Omiya S, Kido M, Toyama H, Tokumaru S, Okimoto T, Fukumoto T. Clinical impact of spacer placement surgery with expanded polytetrafluoroethylene sheet for particle therapy. Radiat Oncol 2023; 18:173. [PMID: 37875956 PMCID: PMC10594906 DOI: 10.1186/s13014-023-02359-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 10/07/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Spacer placement surgery is useful in particle therapy (PT) for patients with abdominopelvic malignant tumors located adjacent to the gastrointestinal tract. This study aimed to assess the safety, efficacy, and long-term outcomes of spacer placement surgery using an expanded polytetrafluoroethylene (ePTFE) spacer. METHODS This study included 131 patients who underwent ePTFE spacer placement surgery and subsequent PT between September 2006 and June 2019. The overall survival (OS) and local control (LC) rates were calculated using Kaplan-Meier method. Spacer-related complications were classified according to the National Cancer Institute Common Terminology Criteria for Adverse Events (version 5.0). RESULTS The median follow-up period after spacer placement surgery was 36.8 months. The 3-year estimated OS and LC rates were 60.5% and 76.5%, respectively. A total of 130 patients (99.2%) were able to complete PT. Spacer-related complications of ≥ grade 3 were observed in four patients (3.1%) in the acute phase and 13 patients (9.9%) in the late phase. Ten patients (7.6%) required removal of the ePTFE spacer. CONCLUSIONS Spacer placement surgery using an ePTFE spacer for abdominopelvic malignant tumors is technically feasible and acceptable for subsequent PT. However, severe spacer-related late complications were observed in some patients. Since long-term placement of a non-absorbable ePTFE spacer is associated with risks for morbidity and infection, careful long-term follow-up and prompt therapeutic intervention are essential when complications associated with the ePTFE spacer occur. TRIAL REGISTRATION retrospectively registered.
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Affiliation(s)
- Ryosuke Fujinaka
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Hyogo, Japan
| | - Shohei Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Hyogo, Japan.
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, 679-5165, Hyogo, Japan
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, 679-5165, Hyogo, Japan
- Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, 1-6-8 Minatojimaminami-machi, Chuo-ku, Kobe, 650-0047, Hyogo, Japan
| | - Satoshi Omiya
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Hyogo, Japan
| | - Masahiro Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Hyogo, Japan
| | - Hirochika Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Hyogo, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, 679-5165, Hyogo, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, 679-5165, Hyogo, Japan
| | - Takumi Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Hyogo, Japan
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20
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Wang Z, Zhang J, Yang B, Zhang Y, Chen X, Wang J, Wu R, Wang K, Qu Y, Huang X, Luo J, Gao L, Xu G, Li YX, Yi J. T4b Sinonasal Squamous Cell Carcinoma: Surgery Plus Radiotherapy May Contribute to Prolonged Survival. Laryngoscope 2023; 133:2222-2231. [PMID: 36583385 DOI: 10.1002/lary.30545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 11/22/2022] [Accepted: 12/12/2022] [Indexed: 12/31/2022]
Abstract
PURPOSE To determine oncologic outcomes for patients with T4b sinonasal squamous cell carcinoma (SNSCC) treated with either surgery plus radiotherapy or definitive radiotherapy. MATERIALS AND METHODS Between January 1999 and December 2016, 85 patients with T4b SNSCC were analyzed retrospectively, there were 54 who received surgery plus radiotherapy (S + RT group) ± chemotherapy and 31 with definitive radiotherapy (RT group) ± chemotherapy. A 1: 2 propensity score matching (PSM) was performed to balance clinical factors and match patients. Kaplan-Meier method and Cox proportional hazard model were used to determine risk factors on survival outcomes. RESULTS The median follow-up time was 76.7 months. The cumulative rates of locoregional control (LRC), distant metastasis-free survival (DMFS), cancer-specific survival (CSS), and overall survival (OS) at 5 years for entire cohort were 44.6%, 33.1%, 38.8%, and 33.9% respectively. After PSM, a total of 50 patients in S + RT group and 25 patients in RT group were analyzed. The 5-year LRC, DMFS, CSS, and OS between S + RT and RT group were 58.6% versus 27.5% (p = 0.035), 42.8% versus 20.0% (p = 0.006), 50.3% versus 22.0% (p = 0.005), 44.5% veruss 20.0% (p = 0.004). The 5-year survival rates with orbital retention between groups were 32.7% and 15.0%, p = 0.080. Multivariate Cox analysis revealed non-surgical therapy (HR = 3.678, 95%CI 1.951-6.933) and invasion of cranial nerves (other than maxillary division of trigeminal nerves) (HR = 2.596, 95%CI 1.217-5.535) were associated with decreased OS. CONCLUSION The inclusion of surgery in the multimodal management of T4b SNSCC might confer a survival benefit. Further prospective studies comparing the oncologic outcomes of S + RT with RT are warranted. LEVEL OF EVIDENCE 3 Laryngoscope, 133:2222-2231, 2023.
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Affiliation(s)
- Zekun Wang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianghu Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bining Yang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuesong Chen
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jingbo Wang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Runye Wu
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kai Wang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan Qu
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaodong Huang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jingwei Luo
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Gao
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guozhen Xu
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye-Xiong Li
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junlin Yi
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical Sciences, Langfang, China
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21
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Aoki S, Onishi H, Karube M, Yamamoto N, Yamashita H, Shioyama Y, Matsumoto Y, Matsuo Y, Miyakawa A, Matsushita H, Ishikawa H. Comparative Analysis of Photon Stereotactic Radiotherapy and Carbon-Ion Radiotherapy for Elderly Patients with Stage I Non-Small-Cell Lung Cancer: A Multicenter Retrospective Study. Cancers (Basel) 2023; 15:3633. [PMID: 37509294 PMCID: PMC10377658 DOI: 10.3390/cancers15143633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/04/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
The emergence of an aging society and technological advances have made radiotherapy, especially stereotactic body radiotherapy (SBRT), a common alternative to surgery for elderly patients with early stage non-small-cell lung cancer (NSCLC). Carbon-ion radiotherapy (CIRT) is also an attractive treatment option with potentially lower toxicity for elderly patients with comorbidities. We compared the clinical outcomes of the two modalities using Japanese multicenter data. SBRT (n = 420) and single-fraction CIRT (n = 70) data for patients with stage I NSCLC from 20 centers were retrospectively analyzed. Contiguous patients ≥ 80 years of age were enrolled, and overall survival (OS), disease-specific survival (DSS), local control (LC), and adverse event rates were compared. The median age was 83 years in both groups and the median follow-up periods were 28.5 and 42.7 months for SBRT and CIRT, respectively. The 3-year OS, DSS, and LC rates were 76.0% vs. 72.3% (p = 0.21), 87.5% vs. 81.6% (p = 0.46), and 79.2% vs. 78.2% (p = 0.87), respectively, for the SBRT vs. CIRT groups. Regarding toxicity, 2.9% of the SBRT group developed grade ≥ 3 radiation pneumonitis, whereas none of the CIRT group developed grade ≥ 2 radiation pneumonitis. SBRT and CIRT in elderly patients showed similar survival and LC rates, although CIRT was associated with less severe radiation pneumonitis.
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Affiliation(s)
- Shuri Aoki
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan
- Department of Radiology, University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Hiroshi Onishi
- Department of Radiology, University of Yamanashi, Yamanashi 400-0016, Japan
| | - Masataka Karube
- Department of Radiology, Teikyo University Mizonokuchi Hospital, Kanagawa 213-8507, Japan
| | - Naoyoshi Yamamoto
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan
| | - Hideomi Yamashita
- Department of Radiology, University of Tokyo Hospital, Tokyo 113-8655, Japan
| | | | - Yasuo Matsumoto
- Department of Radiation Oncology, Niigata Cancer Center Hospital, Niigata 951-8133, Japan
| | - Yukinori Matsuo
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
- Department of Radiation Oncology, Faculty of Medicine, Kindai University, Osaka 577-8502, Japan
| | - Akifumi Miyakawa
- Department of Radiology, Graduate School of Medical Sciences, Nagoya City University, Aichi 467-8501, Japan
| | - Haruo Matsushita
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, Sendai 980-8577, Japan
| | - Hitoshi Ishikawa
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan
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Chirdchid T, Ruangchan S, Sanghangthum T. Dosimetric Comparison between Single-energy Computed Tomography and Dual-energy Computed Tomography Relative to Stopping Power Estimation in Proton Therapy. J Med Phys 2023; 48:292-297. [PMID: 37969143 PMCID: PMC10642597 DOI: 10.4103/jmp.jmp_27_23] [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: 03/02/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 11/17/2023] Open
Abstract
Purpose The focus of this work was given on the relative stopping power (RSP) using the water equivalent thickness (WET) validation on tissue substitutes and real pig organs, as well as a dosimetric comparison of proton treatment plans between single-energy computed tomography (SECT) and dual-energy computed tomography (DECT)-based dose calculations. Materials and Methods The CT calibration curve of SECT and DECT data was generated using the stoichiometric calibration method. WET measurement was performed for RSP validation using a Giraffe dosimeter (IBA dosimetry) in various substitute tissues (Gammex) and real pig tissues. The thorax (008A, CIRS) and head (731-HN, CIRS) phantoms were used to generate proton plans. The dosimetric evaluations of SECT and DECT-based plans were performed using the gamma analysis with 1%/1 mm and the dose-volume histograms (DVHs) comparison. Results For RSP validation of substitute tissues, the largest percent WET difference between measurement and calculation was observed up to 17.9% (4 mm) in lung tissue, using SECT based. In real pig tissues, the average WET difference was 2.3% ± 2.1% and 2.5% ± 2.3% for SECT and DECT, respectively. The average gamma passed of about 92.1% for the lung and 96.8% for the head regions was reported. For the lung region, the DVH of the target dose was observed with a higher predicted dose in SECT than in DECT, while results in the head region were in good agreement for both SECT and DECT. Conclusion The performed dosimetric comparison indicates the dose differences between SECT and DECT. The impact of the CT calibration curve is more pronounced for the thorax region.
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Affiliation(s)
- Thamonwan Chirdchid
- Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sirinya Ruangchan
- Her Royal Highness Princess Maha Chakri Sirindhorn Proton Center, Bangkok, Thailand
- Department of Radiology, Division of Radiation Oncology, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Taweap Sanghangthum
- Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Her Royal Highness Princess Maha Chakri Sirindhorn Proton Center, Bangkok, Thailand
- Department of Radiology, Division of Radiation Oncology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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23
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Choi JC, Kang JH, Kim DW, Park CW. Preparation and Evaluation of Inhalable Amifostine Microparticles Using Wet Ball Milling. Pharmaceutics 2023; 15:1696. [PMID: 37376145 DOI: 10.3390/pharmaceutics15061696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/21/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The conventional dosage form of Ethyol® (amifostine), a sterile lyophilized powder, involves reconstituting it with 9.7 mL of sterile 0.9% sodium chloride in accordance with the United States Pharmacopeia specifications for intravenous infusion. The purpose of this study was to develop inhalable microparticles of amifostine (AMF) and compare the physicochemical properties and inhalation efficiency of AMF microparticles prepared by different methods (jet milling and wet ball milling) and different solvents (methanol, ethanol, chloroform, and toluene). Inhalable microparticles of AMF dry powder were prepared using a wet ball-milling process with polar and non-polar solvents to improve their efficacy when delivered through the pulmonary route. The wet ball-milling process was performed as follows: AMF (10 g), zirconia balls (50 g), and solvent (20 mL) were mixed and placed in a cylindrical stainless-steel jar. Wet ball milling was performed at 400 rpm for 15 min. The physicochemical properties and aerodynamic characteristics of the prepared samples were evaluated. The physicochemical properties of wet-ball-milled microparticles (WBM-M and WBM-E) using polar solvents were confirmed. Aerodynamic characterization was not used to measure the % fine particle fraction (% FPF) value in the raw AMF. The % FPF value of JM was 26.9 ± 5.8%. The % FPF values of the wet-ball-milled microparticles WBM-M and WBM-E prepared using polar solvents were 34.5 ± 0.2% and 27.9 ± 0.7%, respectively; while the % FPF values of the wet-ball-milled microparticles WBM-C and WBM-T prepared using non-polar solvents were 45.5 ± 0.6% and 44.7 ± 0.3%, respectively. Using a non-polar solvent in the wet ball-milling process resulted in a more homogeneous and stable crystal form of the fine AMF powder than using a polar solvent.
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Affiliation(s)
- Jae-Cheol Choi
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Ji-Hyun Kang
- School of Pharmacy, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Dong-Wook Kim
- College of Pharmacy, Wonkwang University, Iksan 54538, Republic of Korea
| | - Chun-Woong Park
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
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Omiya S, Komatsu S, Terashima K, Yamasaki N, Matsuo Y, Toyama H, Tokumaru S, Okimoto T, Fukumoto T. Hepatic Resection vs Particle Therapy as an Initial Treatment for Single Hepatocellular Carcinoma: Bi-institutional Propensity Score-Matched Analysis. J Am Coll Surg 2023; 236:972-981. [PMID: 36537706 DOI: 10.1097/xcs.0000000000000532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Curative treatment for hepatocellular carcinoma (HCC) is limited to hepatic resection (HR), radiofrequency ablation, and liver transplantation, but the value of particle therapy (PT) as an initial treatment remains unclear. This study aimed to compare the outcomes of HR and PT for single HCC. STUDY DESIGN A total of 554 patients with single HCC without vascular invasion were enrolled from January 2000 to December 2015. Patients underwent either HR (n = 279) or PT (n = 275) as initial treatments. A one-to-one propensity score-matching analysis was performed to evaluate the overall survival (OS) and progression-free survival after dividing patients according to liver function as assessed by the modified albumin-bilirubin grade. RESULTS The median OS (130 vs 85 months, p = 0.001) and progression-free survival (47 vs 30 months HR, p = 0.004) of HR were also significantly better than that of PT in the propensity score-matching cohort with modified albumin-bilirubin grade 1/2a (n = 145 per group). Meanwhile, in a propensity score-matching cohort with modified albumin-bilirubin grade 2b/3 (n = 53 per group), there were no significant differences in median OS and progression-free survival between HR and PT. CONCLUSIONS HR may be preferable as an initial treatment for patients with single HCC without vascular invasion, especially those with preserved liver function. PT can be an acceptable alternative to HR for patients without surgical indication and/or impaired liver function.
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Affiliation(s)
- Satoshi Omiya
- From the Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan (Omiya, Komatsu, Yamasaki, Toyama, Fukumoto)
| | - Shohei Komatsu
- From the Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan (Omiya, Komatsu, Yamasaki, Toyama, Fukumoto)
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan (Terashima, Matsuo, Tokumaru, Okimoto)
| | - Nobuaki Yamasaki
- From the Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan (Omiya, Komatsu, Yamasaki, Toyama, Fukumoto)
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan (Terashima, Matsuo, Tokumaru, Okimoto)
| | - Hirochika Toyama
- From the Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan (Omiya, Komatsu, Yamasaki, Toyama, Fukumoto)
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan (Terashima, Matsuo, Tokumaru, Okimoto)
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan (Terashima, Matsuo, Tokumaru, Okimoto)
| | - Takumi Fukumoto
- From the Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan (Omiya, Komatsu, Yamasaki, Toyama, Fukumoto)
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Li W, Zhang W, Lin Y, Chen RC, Gao H. Fraction optimization for hybrid proton-photon treatment planning. Med Phys 2023. [PMID: 36786202 DOI: 10.1002/mp.16297] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Hybrid proton-photon radiotherapy (RT) can provide better plan quality than proton or photon only RT, in terms of robustness of target coverage and sparing of organs-at-risk (OAR). PURPOSE This work develops a hybrid treatment planning method that can optimize the number of proton and photon fractions as well as proton and photon plan variables, so that the hybrid plans can be clinically delivered day-to-day using either proton or photon machine. METHODS In the new hybrid treatment planning method, the total dose distribution (sum of proton dose and photon dose) is optimized for robust target coverage and optimal OAR sparing, by jointly optimizing proton spots and photon fluences, while the target dose uniformity is also enforced individually on both proton dose and photon dose, so that the hybrid plans can be separately and robustly delivered on proton or photon machine. To ensure the target dose uniformity for proton and photon plans, the number of proton and photon fractions is explicitly modeled and optimized, so that the target dose for proton and photon dose components is constrained to be a constant fraction of the total prescription dose while the plan quality based on total dose is optimized. The feasibility of hybrid planning using the proposed method is validated with representative clinical cases including abdomen, lung, head-and-neck (HN), and brain. RESULTS For all cases, hybrid plans provided better overall plan quality and OAR sparing than proton-only or photon-only plans, better target dose uniformity and robustness than proton-only plans, quantified by treatment planning objectives and dosimetric parameters. Moreover, for HN and brain cases, hybrid plans also had better target coverage than photon-only plans. CONCLUSIONS We have developed a new hybrid treatment planning method that optimizes number of proton and photon fractions as well as proton spots and photon fluences, for generating hybrid plans that can be separately and robustly delivered on proton or photon machines. Preliminary results have demonstrated that hybrid plans generated by the new method have better plan quality than proton-only or photon-only plans.
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Affiliation(s)
- Wangyao Li
- Department of Radiation Oncology, Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Weijie Zhang
- Department of Radiation Oncology, Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Yuting Lin
- Department of Radiation Oncology, Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Ronald C Chen
- Department of Radiation Oncology, Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Hao Gao
- Department of Radiation Oncology, Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas, USA
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Singh A, Kitpanit S, Neal B, Yorke E, White C, Yom SK, Randazzo JD, Wong RJ, Huryn JM, Tsai CJ, Zakeri K, Lee NY, Estilo CL. Osteoradionecrosis of the Jaw Following Proton Radiation Therapy for Patients With Head and Neck Cancer. JAMA Otolaryngol Head Neck Surg 2023; 149:151-159. [PMID: 36547968 PMCID: PMC9912132 DOI: 10.1001/jamaoto.2022.4165] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/27/2022] [Indexed: 12/24/2022]
Abstract
Importance Proton radiation therapy (PRT) has reduced radiation-induced toxic effects, such as mucositis and xerostomia, over conventional photon radiation therapy, leading to significantly improved quality of life in patients with head and neck cancers. However, the prevalence of osteoradionecrosis (ORN) of the jaw following PRT in these patients is less clear. Objective To report the prevalence and clinical characteristics of ORN in patients with oral and oropharyngeal cancer (OOPC) treated with PRT. Design, Setting, and Participants This case series reports a single-institution experience (Memorial Sloan Kettering Cancer Center, New York, New York) between November 2013 and September 2019 and included 122 radiation therapy-naive patients with OOPC treated with PRT. Data were analyzed from 2013 to 2019. Main Outcomes and Measures Clinical parameters, including sex, age, comorbidities, tumor histology, concurrent chemotherapy, smoking, comorbidities, and preradiation dental evaluation, were obtained from the medical record. Patients with clinical or radiographic signs of ORN were identified and graded using the adopted modified Glanzmann and Grätz grading system. Characteristics of ORN, such as location, clinical presentation, initial stage at diagnosis, etiology, time to diagnosis, management, and clinical outcome at the last follow-up, were also collected. Results Of the 122 patients (mean [SD] age, 63 [13] years; 45 [36.9%] women and 77 [63.1%] men) included in this study, 13 (10.6%) developed ORN following PRT during a median (range) follow-up time of 40.6 (<1-101) months. All patients had spontaneous development of ORN. At the time of initial diagnosis, grade 0, grade 1, grade 2, and grade 3 ORN were seen in 2, 1, 9, and 1 patient, respectively. The posterior ipsilateral mandible within the radiation field that received the full planned PRT dose was the most involved ORN site. At a median (range) follow-up of 13.5 (0.2-58.0) months from the time of ORN diagnosis, complete resolution, stable condition, and progression of ORN were seen in 3, 6, and 4 patients, respectively. The 3-year rates of ORN and death in the total cohort were 5.2% and 21.5%, while the 5-year rates of ORN and death were 11.5% and 34.4%, respectively. Conclusions and Relevance In this case series, the prevalence of ORN following PRT was found to be 10.6%, indicating that ORN remains a clinical challenge even in the era of highly conformal PRT. Clinicians treating patients with OOPC with PRT should be mindful of this complication.
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Affiliation(s)
- Annu Singh
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sarin Kitpanit
- Department of Radiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Pathumwan, Bangkok
| | - Brian Neal
- ProCure Proton Therapy Center, Somerset, New Jersey
| | - Ellen Yorke
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Charlie White
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - SaeHee K. Yom
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Joseph D. Randazzo
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Richard J. Wong
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Joseph M. Huryn
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Dental Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chiaojung Jillian Tsai
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kaveh Zakeri
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy Y. Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Cherry L. Estilo
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
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Cucinotta FA, Pak S. Isotopic production cross sections in proton-16O and proton-12C interactions for energies from 10 MeV/u to 100 GeV/u. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS 2023; 534:26-34. [PMID: 36644589 PMCID: PMC9838115 DOI: 10.1016/j.nimb.2022.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Proton interactions with 16O or 12C nuclei are frequent nuclear interaction leading to secondary radiation in tissues for space radiation and cancer therapy with protons or ion beams. The fragmentation of these ions by protons produces a large number of heavy ion (A>4) target or projectile fragments often with high ionization density. Here we develop an analytical model of energy dependent proton-16O and proton-12C cross sections for isotopic nuclei production. Using experimental data and a 2nd order optical model an accurate formula for the absorption cross section from <10 MeV/u to >10 GeV/u is obtained. The energy dependence of the elemental and isotopic cross sections is modeled as multiplicities scaled to absorption cross section with average isotopic fractions estimated from experimental data. We show that this approach results in accurate analytic formulae for isotopic fragmentation cross sections over the full energy range in hadron therapy and space radiation protection studies.
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Affiliation(s)
| | - Sungmin Pak
- University of Nevada Las Vegas, Las Vegas NV 89154, USA
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28
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Yang X, Chen Y, Wang J, Zheng H, Liu H, Zhou D, He Y, Wang Z, Zhou Q. Online beam orbit correction of MEBT in CiADS based on multi-agent reinforcement learning algorithm. ANN NUCL ENERGY 2022. [DOI: 10.1016/j.anucene.2022.109346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hu W, Li P, Hong Z, Guo X, Pei Y, Zhang Z, Zhang Q. Functional imaging-guided carbon ion irradiation with simultaneous integrated boost for localized prostate cancer: study protocol for a phase II randomized controlled clinical trial. Trials 2022; 23:934. [PMID: 36348363 PMCID: PMC9644615 DOI: 10.1186/s13063-022-06798-5] [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: 12/21/2021] [Accepted: 09/26/2022] [Indexed: 11/09/2022] Open
Abstract
Background Due to the physical dose distribution characteristic of “Bragg peak” and the biological effect as a kind of high linear energy transfer ray, heavy ion therapy has advantages over conventional photon therapy in both efficacy and safety. Based on the evidence that prostate cancer lesions before treatment are the most common sites of tumor residual or recurrence after treatment, simultaneous integrated boost radiation therapy for prostate cancer has been proven to have the advantage of improving efficacy without increasing toxicities. Methods This study is a prospective phase II randomized controlled clinical trial evaluating the efficacy and safety of functional imaging-guided carbon ion irradiation with simultaneous integrated boost for localized prostate cancer. One hundred and forty patients with localized prostate cancer will be randomized into carbon ion radiotherapy group and simultaneous integrated boost carbon ion radiotherapy group at a 1:1 ratio. The primary endpoint is to compare the incidence of treatment-related grade 2 and higher acute toxicities between the two groups according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 4.03. Secondary endpoints are late toxicities, biochemical relapse-free survival, overall survival, progression-free survival, and quality of life. Discussion This study adopts functional imaging-guided simultaneous integrated boost of carbon ion radiotherapy for localized prostate cancer, aiming to evaluate the differences in the severity and incidence of acute toxicities in patients with localized prostate cancer treated with carbon ion radiotherapy and simultaneous integrated boost carbon ion radiotherapy, in order to optimize the carbon ion treatment strategy for localized prostate cancer. Trial registration ClinicalTrials.gov NCT05010343. Retrospectively registered on 18 August 2021
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K X-ray Emission for Slow Oxygen Ions Approaching a Copper Metal Surface. ATOMS 2022. [DOI: 10.3390/atoms10040124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We report on the K X-ray emission for 9–140 keV oxygen ions with initial charge states from 3 to 7 approaching a copper surface. The peak center of the measured X-ray spectrum slightly shifts towards higher energies with the increasing of the initial charge state of the incident ions. For the collisions of oxygen ions with no K-vacancies (q = 3–6), the X-ray yield per incident ion increases gradually with the projectile’s kinetic energy, while for the O7+ ions (with a K-vacancy) it is nearly independent of the energy. The K-shell ionization cross-sections for the oxygen ions with no K-vacancies obtained from the experiments are well consistent with the calculations of the binary encounter approximation model when the collision energy is larger than 30 keV, whereas they are several times larger than the theoretical values at collision energies of less than 30 keV.
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Yamamoto Y, Hino A, Kurihara H, Kano K, Serizawa I, Katoh H, Hiruma T. Transitional changes of spacer materials used in carbon-ion radiation therapy. Asia Pac J Clin Oncol 2022; 18:e442-e447. [PMID: 35098680 DOI: 10.1111/ajco.13751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 12/13/2021] [Indexed: 01/01/2023]
Abstract
PURPOSE To evaluate the imaging findings and transitional changes in spacer materials used in carbon-ion radiation therapy MATERIALS: Medical records were retrospectively reviewed, and the maximum thickness, volume, and CT value of spacers were calculated from CT scans. Procedure-related complications were recorded. RESULTS A spacer was surgically placed in six patients in retroperitoneal, presacral, or peritoneal sites. The spacer material was polyglycolic acid (PGA) in four patients and expanded polytetrafluoroethylene (ePTFE) in two patients. The thickness of PGA spacers showed no changes in any patients within 4 weeks, but increased within 6 weeks in one patient and was unchanged or decreased in the remaining patients. PGA spacer volume decreased gradually after placement in three of four patients; this was observed at 4 months in two patients and at 6 months in one patient. The mean CT value of PGA spacers was 83 HU just after placement, and decreased gradually thereafter. Air was seen in the PGA spacers of two patients. Neither ePTFE spacer showed volume changes over time, and the mean CT value was low (mean, -53.7 HU) just after placement but increased rapidly to 145 HU at 2 months. CONCLUSION Spacer imaging findings may vary according to type and may change over time. Familiarity with these features is beneficial for diagnostic radiologists.
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Affiliation(s)
- Yayoi Yamamoto
- Department of Radiology and Interventional Radiology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Ayako Hino
- Department of Radiology and Interventional Radiology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Hiroaki Kurihara
- Department of Radiology and Interventional Radiology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Kio Kano
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Itsuko Serizawa
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Hiroyuki Katoh
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Toru Hiruma
- Department of Musculoskeletal Tumor Surgery, Kanagawa Cancer Center, Kanagawa, Japan
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Hartmann L, Osen W, Eichmüller OL, Kordaß T, Furkel J, Dickes E, Reid C, Debus J, Brons S, Abdollahi A, Moustafa M, Rieken S, Eichmüller SB. Carbon ion irradiation plus CTLA4 blockade elicits therapeutic immune responses in a murine tumor model. Cancer Lett 2022; 550:215928. [DOI: 10.1016/j.canlet.2022.215928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 11/02/2022]
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Aoki S, Koto M, Ikawa H, Imai R, Tokuhiko O, Shinoto M, Takiyama H, Yamada S, Tsuji H. Long-term outcomes of high dose carbon-ion radiation therapy for unresectable upper cervical (C1-2) chordoma. Head Neck 2022; 44:2162-2170. [PMID: 35734902 PMCID: PMC9544549 DOI: 10.1002/hed.27127] [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: 02/16/2022] [Revised: 05/12/2022] [Accepted: 06/07/2022] [Indexed: 11/06/2022] Open
Abstract
Background Chordoma is a rare, locally invasive neoplasm of the axial skeleton. Complete resection is often difficult, especially for the upper‐cervical (C1‐2) spine. We evaluated the efficacy and safety of carbon‐ion radiotherapy (CIRT) for unresectable C1‐2 chordoma. Methods Patients with C1‐2 chordoma treated with definitive CIRT (60.8 Gy [RBE] in 16 fractions) were retrospectively analyzed. We evaluated OS, LC, PFS, and toxicity. Results Nineteen eligible patients all completed the planned course of CIRT. With the median follow‐up 68 months (range: 29–144), median OS was 126 months (range: 36‐NA). Five‐year OS, LC, and PFS were 68.4% (95% CI, 42.8%–84.4%), 75.2% (46.1%–90.0%), and 64.1% (36.3%–82.3%), respectively. Regarding acute toxicity of grade ≥3, there was only one grade 3 mucositis. Late toxicity included radiation‐induced myelitis (grade 3 in 1 patient; 5.3%), and compression fractures (n = 5; 26.3%). Conclusions High‐dose CIRT is a promising treatment option for unresectable upper cervical chordoma.
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Affiliation(s)
- Shuri Aoki
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan.,Department of Radiology, University of Tokyo Hospital, Tokyo, Japan
| | - Masashi Koto
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hiroaki Ikawa
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Reiko Imai
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Omatsu Tokuhiko
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Makoto Shinoto
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hirotoshi Takiyama
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Shigeru Yamada
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hiroshi Tsuji
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
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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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Utilizing Carbon Ions to Treat Medulloblastomas that Exhibit Chromothripsis. CURRENT STEM CELL REPORTS 2022. [DOI: 10.1007/s40778-022-00213-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Abstract
Purpose of Review
Novel radiation therapies with accelerated charged particles such as protons and carbon ions have shown encouraging results in oncology. We present recent applications as well as benefits and risks associated with their use.
Recent Findings
We discuss the use of carbon ion radiotherapy to treat a specific type of aggressive pediatric brain tumors, namely medulloblastomas with chromothripsis. Potential reasons for the resistance to conventional treatment, such as the presence of cancer stem cells with unique properties, are highlighted. Finally, advantages of particle radiation alone and in combination with other therapies to overcome resistance are featured.
Summary
Provided that future preclinical studies confirm the evidence of high effectiveness, favorable toxicity profiles, and no increased risk of secondary malignancy, carbon ion therapy may offer a promising tool in pediatric (neuro)oncology and beyond.
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Hashimoto Y, Komatsu S, Terashima K, Tsugawa D, Yanagimoto H, Suga M, Demizu Y, Tokumaru S, Okimoto T, Sasaki R, Ajiki T, Fukumoto T. Space-Making Particle Therapy for Unresectable Hilar Cholangiocarcinoma. Dig Surg 2022; 39:99-108. [PMID: 35462363 DOI: 10.1159/000524582] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 04/09/2022] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Although the primary treatment option for hilar cholangiocarcinoma (HC) has been surgical resection, most patients present with unresectable advanced tumors at the time of diagnosis. Particle therapy (PT) holds great potential for HC, even though the anatomical proximity to the gastrointestinal tract prevents delivering a radical dose to the tumor. Space-making PT (SMPT), consisting of spacer placement surgery and subsequent PT, has been developed to minimize complications and maximize the therapeutic benefit of dose escalation for HC. This study aimed to conduct a dosimetric evaluation and examine the effectiveness of SMPT for the treatment of HC. METHODS Between 2007 and 2018, 12 patients with unresectable HC treated with SMPT were enrolled. The treatment outcomes and effectiveness of spacer placement surgery were evaluated through analyses of pre- and post-surgical parameters of dose-volume histograms. RESULTS All patients completed the planned SMPT protocol. The median survival time was 29.6 months, and the 1- and 3-year overall survival rates were 82.5% and 45.8%, respectively. The mean V95% value (volume irradiated with 95% of the planned treatment dose) of the gross tumor volume and clinical target volume after spacer placement surgery improved to 98.5% and 96.6% from preoperative values of 85.6% and 78.1%, respectively (p = 0.0196 and p = 0.0053, respectively). Grade 3 or higher adverse events after SMPT were seen in 6 patients. DISCUSSION/CONCLUSION SMPT led to improvements in dosimetric parameters and showed good feasibility and excellent outcomes. SMPT can be a promising novel alternative for unresectable HC.
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Affiliation(s)
- Yu Hashimoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shohei Komatsu
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Daisuke Tsugawa
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroaki Yanagimoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan.,Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, Kobe, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Ryohei Sasaki
- Division of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tetsuo Ajiki
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takumi Fukumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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O’Leary B, Yeoh K. The Oncologist of the Future. Clin Oncol (R Coll Radiol) 2022; 34:578-580. [DOI: 10.1016/j.clon.2022.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/13/2022] [Accepted: 03/23/2022] [Indexed: 11/03/2022]
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Serizawa I, Kusano Y, Kano K, Shima S, Tsuchida K, Takakusagi Y, Mizoguchi N, Kamada T, Yoshida D, Katoh H. Three cases of retroperitoneal sarcoma in which bioabsorbable spacers (bioabsorbable polyglycolic acid spacers) were inserted prior to carbon ion radiotherapy. JOURNAL OF RADIATION RESEARCH 2022; 63:296-302. [PMID: 35152291 PMCID: PMC8944322 DOI: 10.1093/jrr/rrac002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/17/2021] [Indexed: 06/14/2023]
Abstract
From August 2019 to August 2020, we inserted polyglycolic acid (PGA) spacers and administered carbon ion radiotherapy (CIRT) to three cases of retroperitoneal sarcoma at our hospital. We aimed to investigate its utility and safety for retroperitoneal sarcoma. We analyzed changes in PGA spacer volume and corresponding computed tomography (CT) values in addition to the dose distribution using in-room CT images that were obtained during treatment. We assessed adverse events and investigated the suitability, safety and effectivity of PGA spacer insertion. During treatment, changes in PGA spacer volumes and CT values were confirmed. Volumes increased in patients with a folded PGA spacer, and it increased 1.6-fold by the end of irradiation compared with planning CT. The CT values decreased by 20-50 Hounsfield units at the end of irradiation compared to the planning CT. Dose distribution evaluation showed that the dose to the gastrointestinal tract adjacent to the tumor was maintained below the tolerable dose, and a sufficient dose was delivered to the target by PGA spacer insertion. One case of subileus caused during abdominal surgery for PGA spacer insertion occurred. No other adverse events, such as digestive disorders, were observed. CIRT with PGA spacer insertion for retroperitoneal sarcomas is safe and effective. For cases in which there is no option but to perform irradiation using a PGA spacer, precautionary measures such as verification of dose distributions using CT images are necessary.
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Affiliation(s)
- Itsuko Serizawa
- Corresponding author. Itsuko Serizawa, MD, PhD, Department of Radiation Oncology, Kanagawa Cancer Center, 241-8515, Asahi-ku, Yokohama, Kanagawa, Japan. Tel: +81 455202222; Fax: +81 455202202; E-mail:
| | - Yohsuke Kusano
- Section of Medical Physics and Engineering, Kanagawa Cancer Center, Yokohama 241-8515, Japan
| | - Kio Kano
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Satoshi Shima
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Keisuke Tsuchida
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Yosuke Takakusagi
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Nobutaka Mizoguchi
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Tadashi Kamada
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Daisaku Yoshida
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
| | - Hiroyuki Katoh
- Department of Radiation Oncology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan
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Takakusagi Y, Suga M, Kusano Y, Kano K, Shima S, Tsuchida K, Mizoguchi N, Serizawa I, Yoshida D, Kamada T, Minohara S, Katoh H. Evaluation of Safety for Scanning Carbon-Ion Radiotherapy in Hemodialysis Patients With Prostate Cancer. Cureus 2022; 14:e22214. [PMID: 35308759 PMCID: PMC8925932 DOI: 10.7759/cureus.22214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2022] [Indexed: 11/05/2022] Open
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Poon DMC, Wu S, Ho L, Cheung KY, Yu B. Proton Therapy for Prostate Cancer: Challenges and Opportunities. Cancers (Basel) 2022; 14:cancers14040925. [PMID: 35205673 PMCID: PMC8870339 DOI: 10.3390/cancers14040925] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 01/02/2023] Open
Abstract
Simple Summary Reported clinical outcomes of proton therapy (PT) for localized prostate cancer are similar to photon-based external beam radiotherapy. Apparently, the dosimetric advantages of PT have yet to be translated to clinical benefits. The suboptimal clinical outcomes of PT might be attributable to inadequate dose prescription, as indicated by the ASCENDE-RT trial. Moreover, uncertainties involved in the treatment planning and delivery processes, as well as technological limitations in PT treatment systems, may lead to discrepancies between planned doses and actual doses delivered to patients. In this article, we reviewed the current status of PT for prostate cancer and discussed different clinical implementations that could potentially improve the clinical outcome of PT for prostate cancer. Various technological advancements under which uncertainties in dose calculations can be minimized, including MRI-guided PT, dual-energy photon-counting CT and high-resolution Monte Carlo-based treatment planning systems, are highlighted. Abstract The dosimetric advantages of proton therapy (PT) treatment plans are demonstrably superior to photon-based external beam radiotherapy (EBRT) for localized prostate cancer, but the reported clinical outcomes are similar. This may be due to inadequate dose prescription, especially in high-risk disease, as indicated by the ASCENDE-RT trial. Alternatively, the lack of clinical benefits with PT may be attributable to improper dose delivery, mainly due to geometric and dosimetric uncertainties during treatment planning, as well as delivery procedures that compromise the dose conformity of treatments. Advanced high-precision PT technologies, and treatment planning and beam delivery techniques are being developed to address these uncertainties. For instance, external magnetic resonance imaging (MRI)-guided patient setup rooms are being developed to improve the accuracy of patient positioning for treatment. In-room MRI-guided patient positioning systems are also being investigated to improve the geometric accuracy of PT. Soon, high-dose rate beam delivery systems will shorten beam delivery time to within one breath hold, minimizing the effects of organ motion and patient movements. Dual-energy photon-counting computed tomography and high-resolution Monte Carlo-based treatment planning systems are available to minimize uncertainties in dose planning calculations. Advanced in-room treatment verification tools such as prompt gamma detector systems will be used to verify the depth of PT. Clinical implementation of these new technologies is expected to improve the accuracy and dose conformity of PT in the treatment of localized prostate cancers, and lead to better clinical outcomes. Improvement in dose conformity may also facilitate dose escalation, improving local control and implementation of hypofractionation treatment schemes to improve patient throughput and make PT more cost effective.
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Affiliation(s)
- Darren M. C. Poon
- Comprehensive Oncology Centre, Hong Kong Sanatorium & Hospital, Hong Kong 999077, China;
| | - Stephen Wu
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong 999077, China; (L.H.); (K.Y.C.); (B.Y.)
- Correspondence: ; Tel.: +852-29171413
| | - Leon Ho
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong 999077, China; (L.H.); (K.Y.C.); (B.Y.)
| | - Kin Yin Cheung
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong 999077, China; (L.H.); (K.Y.C.); (B.Y.)
| | - Ben Yu
- Medical Physics Department, Hong Kong Sanatorium & Hospital, Hong Kong 999077, China; (L.H.); (K.Y.C.); (B.Y.)
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Li P, Hong Z, Li Y, Fu S, Zhang Q. Two-Year Toxicity and Efficacy of Carbon Ion Radiotherapy in the Treatment of Localized Prostate Cancer: A Single-Centered Study. Front Oncol 2022; 11:808216. [PMID: 35223457 PMCID: PMC8881099 DOI: 10.3389/fonc.2021.808216] [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: 11/03/2021] [Accepted: 12/27/2021] [Indexed: 11/25/2022] Open
Abstract
Background We aimed at determining the safety and feasibility of spot-scanning carbon ion radiotherapy (CIRT) for patients with localized prostate cancer. Methods We enrolled 118 patients with localized prostate cancer who underwent treatment with spot-scanning CIRT at the Shanghai Proton and Heavy Ion Center (SPHIC) from January 2016 to December 2020. The dose was gradually increased from relative biological effectiveness (RBE)-weighted dose (DRBE) = 59.2–65.6 Gy in 16 fractions. The primary endpoint was the occurrence of acute and late toxicities, while the secondary endpoints were biochemical relapse-free survival (bRFS), distant metastasis-free survival (DMFS), prostate cancer-specific survival (PCSS), and overall survival (OS). Results The median follow-up time was 30.2 months (4.8–62.7 months). Acute grade 1 and 2 genitourinary (GU) toxicities were 15.3% and 18.6%, while acute grade 1 and 2 gastrointestinal (GI) toxicities were 2.5% and 0%, respectively. Late grade 1 and 2 GU toxicities were 4.2% and 1.7%, respectively. No late GI toxicity was observed. Moreover, there were no cases of severe acute or late toxicity (≥ grade 3). No significant association were observed between the factors and the acute GU toxicities, except for clinical target volume (CTV) (p = 0.031) on multivariate analysis. The 2-year bRFS, DMFS, PCSS, and OS were 100%, 100%, 100%, and 98.8%, respectively. Conclusion The 2-year outcomes were encouraging, providing additional and useful information on the feasibility and safety of spot-scanning CIRT for treating prostate cancer. Thus, we recommend long-term follow-up and prospective multicentered studies to reinforce the role of CIRT in the management of localized prostate cancer.
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Affiliation(s)
- Ping Li
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology, Shanghai, China
| | - Zhengshan Hong
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology, Shanghai, China
| | - Yongqiang Li
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology, Shanghai, China
- Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Shen Fu
- Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Fudan University, Shanghai, China
- Department of Radiation Oncology, Shanghai Concord Cancer Hospital, Shanghai, China
| | - Qing Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
- Shanghai Key Laboratory of Radiation Oncology, Shanghai, China
- *Correspondence: Qing Zhang,
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Wang D, Liu R, Zhang Q, Luo H, Chen J, Dong M, Wang Y, Ou Y, Liu Z, Sun S, Yang K, Tian J, Li Z, Wang X. Charged Particle Irradiation for Pancreatic Cancer: A Systematic Review of In Vitro Studies. Front Oncol 2022; 11:775597. [PMID: 35059313 PMCID: PMC8764177 DOI: 10.3389/fonc.2021.775597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/06/2021] [Indexed: 01/01/2023] Open
Abstract
Purpose Given the higher precision accompanied by optimized sparing of normal tissue, charged particle therapy was thought of as a promising treatment for pancreatic cancer. However, systematic preclinical studies were scarce. We aimed to investigate the radiobiological effects of charged particle irradiation on pancreatic cancer cell lines. Methods A systematic literature search was performed in EMBASE (OVID), Medline (OVID), and Web of Science databases. Included studies were in vitro English publications that reported the radiobiological effects of charged particle irradiation on pancreatic cancer cells. Results Thirteen carbon ion irradiation and seven proton irradiation in vitro studies were included finally. Relative biological effectiveness (RBE) values of carbon ion irradiation and proton irradiation in different human pancreatic cancer cell lines ranged from 1.29 to 4.5, and 0.6 to 2.1, respectively. The mean of the surviving fraction of 2 Gy (SF2) of carbon ion, proton, and photon irradiation was 0.18 ± 0.11, 0.48 ± 0.11, and 0.57 ± 0.13, respectively. Carbon ion irradiation induced more G2/M arrest and a longer-lasting expression of γH2AX than photon irradiation. Combination therapies enhanced the therapeutic effects of pancreatic cell lines with a mean standard enhancement ratio (SER) of 1.66 ± 0.63 for carbon ion irradiation, 1.55 ± 0.27 for proton irradiation, and 1.52 ± 0.30 for photon irradiation. Carbon ion irradiation was more effective in suppressing the migration and invasion than photon irradiation, except for the PANC-1 cells. Conclusions Current in vitro evidence demonstrates that, compared with photon irradiation, carbon ion irradiation offers superior radiobiological effects in the treatment of pancreatic cancer. Mechanistically, high-LET irradiation may induce complex DNA damage and ultimately promote genomic instability and cell death. Both carbon ion irradiation and proton irradiation confer similar sensitization effects in comparison with photon irradiation when combined with chemotherapy or targeted therapy.
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Affiliation(s)
- Dandan Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Ruifeng Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Department of Postgraduate, University of Chinese Academy of Sciences, Beijing, China.,Heavy Ion Therapy Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
| | - Qiuning Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Department of Postgraduate, University of Chinese Academy of Sciences, Beijing, China.,Heavy Ion Therapy Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
| | - Hongtao Luo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Department of Postgraduate, University of Chinese Academy of Sciences, Beijing, China.,Heavy Ion Therapy Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
| | - Junru Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Meng Dong
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Yuhang Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Yuhong Ou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Zhiqiang Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Department of Postgraduate, University of Chinese Academy of Sciences, Beijing, China.,Heavy Ion Therapy Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
| | - Shilong Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Department of Postgraduate, University of Chinese Academy of Sciences, Beijing, China.,Heavy Ion Therapy Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
| | - Kehu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Jinhui Tian
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Zheng Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Xiaohu Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,Department of Postgraduate, University of Chinese Academy of Sciences, Beijing, China.,Heavy Ion Therapy Center, Lanzhou Heavy Ions Hospital, Lanzhou, China
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Distorted wave theories with correct boundary conditions for double charge exchange in ion-atom collisions at intermediate and high energies. ADVANCES IN QUANTUM CHEMISTRY 2022. [DOI: 10.1016/bs.aiq.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Lewis L, Kreinbrink P, Richardson M, Westerfield M, Doberstein M, Zhang Y, Redmond K, Takiar V. Intensity Modulated Proton Therapy Better Spares Non-Adjacent Organs and Reduces the Risk of Secondary Malignant Neoplasms in the Treatment of Sinonasal Cancers. Med Dosim 2021; 47:117-122. [PMID: 34952761 DOI: 10.1016/j.meddos.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 10/19/2022]
Abstract
This study compare dosimetric parameters and secondary malignancy risk (SMN) using intensity modulated proton therapy (IMPT) and volumetric modulated arc therapy (VMAT) plans for the treatment of sinonasal cancer (SC). After IRB-approval, 10 patients previously treated with IMPT for cancers of the ethmoid, sphenoid, maxillary, or frontal sinuses were identified. Dosimetrists blinded to the IMPT plans generated VMAT plans for comparison. Volume coverage and dose to organs at risk (OAR) were recorded and compared. Organ equivalent dose (OED) of tissues outside of the treatment volume was used to define the excess absolute and relative risk of SMNs. In all cases, both VMAT and IMPT provided acceptable target volume coverage and were able to meet OAR constraints. IMPT was superior for brain V10, V30, and mean, brainstem D0.01 ipsilateral cochlea V30, contralateral cochlea mean, contralateral lacrimal gland mean, contralateral parotid mean, spinal cord D0.01 and body outside of the CTV V10, V20, and V30. VMAT was superior for ipsilateral eye mean, ipsilateral lens mean, CTV V100 and maximum hotspot. The relative risk of SMNs with VMAT compared to IMPT is 3.35 (95% CI, 1.92-5.89). For the treatment of SC, IMPT spares OARs that are not immediately adjacent to the treatment volume and reduces the risk of SMNs when compared to VMAT. VMAT spares OARs abutting the target volume better than IMPT and has more homogenous target coverage. Tumors of the ethmoid sinus, benefit more from IMPT, while tumors located elsewhere require application of our findings on a case by case basis.
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Affiliation(s)
- Luke Lewis
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Paul Kreinbrink
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Max Richardson
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Morgan Westerfield
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Madeline Doberstein
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Yongbin Zhang
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Kevin Redmond
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA
| | - Vinita Takiar
- University of Cincinnati, Department of Radiation Oncology, Barrett Cancer Center, ML 0757, 234 Goodman Street, Cincinnati, Ohio 45219, USA; Cincinnati VA Medical Center, 3200 Vine Street, Cincinnati, OH 45220, USA.
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45
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Burg JM, Flatten V, Witt M, Derksen L, Weber U, Engenhart-Cabillic R, Vorwerk H, Zink K, Baumann KS. Experimental determination of modulation power of lung tissue for particle therapy. Phys Med Biol 2021; 66. [PMID: 34844221 DOI: 10.1088/1361-6560/ac3e0d] [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: 07/05/2021] [Accepted: 11/29/2021] [Indexed: 12/25/2022]
Abstract
In particle therapy of lung tumors, modulating effects on the particle beam may occur due to the microscopic structure of the lung tissue. These effects are caused by the heterogeneous nature of the lung tissue and cannot be completely taken into account during treatment planning, because these micro structures are too small to be fully resolved in the planning CT. In several publications, a new material parameter called modulation power (Pmod) was introduced to characterize the effect. For various artificial lung surrogates, this parameter was measured and published by other groups and ranges up to approximately 1000μm. Studies investigating the influence of the modulation power on the dose distribution during irradiation are using this parameter in the rang of 100-800μm. More precise measurements forPmodon real lung tissue have not yet been published. In this work, the modulation power of real lung tissue was measured using porcine lungs in order to produce more reliable data ofPmodfor real lung tissue. For this purpose,ex-vivoporcine lungs were frozen in a ventilated state and measurements in a carbon ion-beam were performed. Due to the way the lungs were prepared and transferred to a solid state, the lung structures that modulate the beam could also be examined in detail using micro CT imaging. An optimization of the established methods of measuring the modulation power, which takes better account of the typical structures within lung tissue, was developed as well.
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Affiliation(s)
- Jan Michael Burg
- University of Applied Sciences Giessen, Institute of Medical Physics and Radiation Protection, Germany.,University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany
| | - Veronika Flatten
- University of Applied Sciences Giessen, Institute of Medical Physics and Radiation Protection, Germany.,University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany.,Marburg Ion-Beam Therapy Center, Marburg, Germany
| | - Matthias Witt
- University of Applied Sciences Giessen, Institute of Medical Physics and Radiation Protection, Germany.,University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany.,Marburg Ion-Beam Therapy Center, Marburg, Germany
| | - Larissa Derksen
- University of Applied Sciences Giessen, Institute of Medical Physics and Radiation Protection, Germany
| | - Uli Weber
- GSI Helmholtzzentrum für Schwerionenforschung, Biophysics Department, Darmstadt, Germany
| | - Rita Engenhart-Cabillic
- University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany.,Marburg Ion-Beam Therapy Center, Marburg, Germany
| | - Hilke Vorwerk
- University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany.,Marburg Ion-Beam Therapy Center, Marburg, Germany
| | - Klemens Zink
- University of Applied Sciences Giessen, Institute of Medical Physics and Radiation Protection, Germany.,University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany.,Marburg Ion-Beam Therapy Center, Marburg, Germany
| | - Kilian-Simon Baumann
- University of Applied Sciences Giessen, Institute of Medical Physics and Radiation Protection, Germany.,University Medical Center Giessen and Marburg, Department of Radiotherapy and Radiation Oncology, Germany.,Marburg Ion-Beam Therapy Center, Marburg, Germany
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Ma NY, Chen J, Ming X, Jiang GL, Lu JJ, Wu KL, Mao J. Preliminary Safety and Efficacy of Proton Plus Carbon-Ion Radiotherapy With Concurrent Chemotherapy in Limited-Stage Small Cell Lung Cancer. Front Oncol 2021; 11:766822. [PMID: 34858845 PMCID: PMC8631778 DOI: 10.3389/fonc.2021.766822] [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: 08/30/2021] [Accepted: 10/11/2021] [Indexed: 01/08/2023] Open
Abstract
Objectives This study aimed to investigate the tolerance and effect of proton plus carbon-ion radiotherapy with concurrent chemotherapy in limited-stage small cell lung cancer using the pencil beam scanning technique. Materials and Methods From March 2017 to April 2020, 25 patients with limited-stage small cell lung cancer treated with combined proton and carbon-ion radiotherapy were analyzed. The primary lesions and involved lymph nodes were irradiated using 2-4 portals. Proton and sequential carbon-ion beams were delivered with a median dose of 67.1 (range, 63-74.8) GyE as fraction doses of 2.0-2.2 GyE with proton beams in 20-23 fractions and 3.0-3.8 GyE with carbon ions in 5-8 fractions. Chemotherapy was delivered concurrently with radiotherapy in all patients. Results At the last follow-up, the 2-year overall and locoregional progression-free survival rates were 81.7% and 66.7%, respectively. Radiochemotherapy was well tolerated, with grade 1, 2, and 3 acute toxicities occurring in 12.0%, 68.0%, and 20.0% of patients, respectively. All grade 3 acute toxicities were hematologically related changes. One patient experienced grade 3 acute non-hematological toxicity in the esophagus, and one other patient had grade 3 bronchial obstruction accompanied by obstructive atelectasis as a late side effect. Conclusion Proton plus carbon-ion radiotherapy using pencil beam scanning yielded promising survival rates and tolerability in patients with limited-stage small cell lung cancer. A prospective clinical study is warranted to validate the therapeutic efficacy of particle radiotherapy in combination with chemotherapy in limited-stage small cell lung cancer.
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Affiliation(s)
- Ning-Yi Ma
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China.,Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Jian Chen
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China.,Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Xue Ming
- Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China.,Department of Radiation Physics, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Guo-Liang Jiang
- Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China.,Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Fudan University, Shanghai, China
| | - Jiade J Lu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China.,Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China
| | - Kai-Liang Wu
- Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China.,Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Fudan University, Shanghai, China
| | - Jingfang Mao
- Department of Radiation Oncology, Shanghai Key Laboratory of Radiation Oncology (20dz2261000), Shanghai, China.,Department of Radiation Oncology, Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, China.,Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Fudan University, Shanghai, China
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Friedman GK, Dhall G. Potential role of carbon ion radiotherapy in chromothripsis-induced medulloblastoma and other malignancies. Neuro Oncol 2021; 23:1991. [PMID: 34605541 DOI: 10.1093/neuonc/noab232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Gregory K Friedman
- Department of Pediatrics, Division of Hematology/Oncology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Girish Dhall
- Department of Pediatrics, Division of Hematology/Oncology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Chen X, Yu Q, Li P, Fu S. Landscape of Carbon Ion Radiotherapy in Prostate Cancer: Clinical Application and Translational Research. Front Oncol 2021; 11:760752. [PMID: 34804961 PMCID: PMC8602827 DOI: 10.3389/fonc.2021.760752] [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: 08/18/2021] [Accepted: 10/20/2021] [Indexed: 12/03/2022] Open
Abstract
Carbon ion radiotherapy (CIRT) is a useful and advanced technique for prostate cancer. This study sought to investigate the clinical efficacy and translational research for prostate cancer with carbon ion radiotherapy. We integrated the data from published articles, clinical trials websites, and our data. The efficacy of CIRT for prostate cancer was assessed in terms of overall survival, biochemical recurrence-free survival, and toxicity response. Up to now, clinical treatment of carbon ion radiotherapy has been carried in only five countries. We found that carbon ion radiotherapy induced little genitourinary and gastrointestinal toxicity when used for prostate cancer treatment. To some extent, it led to improved outcomes in overall survival, biochemical recurrence-free survival than conventional radiotherapy, especially for high-risk prostate cancer. Carbon ion radiotherapy brought clinical benefits for prostate cancer patients, and quality of life assessment indicated that CIRT affected patients to a lesser extent. Potential biomarkers from our omics-based study could be used to predict the efficacy of prostate cancer with CIRT. Carbon ion radiotherapy brought clinical benefits for prostate cancer patients. The omics-based translational research may provide insights into individualized therapy.
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Affiliation(s)
- Xue Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Qi Yu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College of Fudan University, Shanghai, China.,Proton & Heavy Ion Medical Center, State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China.,Department of Radiation Oncology, Shanghai Concord Cancer Center, Shanghai, China
| | - Ping Li
- Department of Radiation Oncology, Shanghai Proton and Heavy lon Center, Shanghai, China
| | - Shen Fu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College of Fudan University, Shanghai, China.,Proton & Heavy Ion Medical Center, State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China.,Department of Radiation Oncology, Shanghai Concord Cancer Center, Shanghai, China.,Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai, China
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49
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Lis M, Newhauser W, Donetti M, Wolf M, Steinsberger T, Paz A, Graeff C. Preliminary tests of dosimetric quality and projected therapeutic outcomes of multi-phase 4D radiotherapy with proton and carbon ion beams. Phys Med Biol 2021; 66. [PMID: 34740202 DOI: 10.1088/1361-6560/ac36e7] [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: 06/16/2021] [Accepted: 11/05/2021] [Indexed: 12/25/2022]
Abstract
Objective. The purpose of this study was to perform preliminary pre-clinical tests to compare the dosimetric quality of two approaches to treating moving tumors with ion beams: synchronously delivering the beam with the motion of a moving planning target volume (PTV) using the recently developed multi-phase 4D dose delivery (MP4D) approach, and asynchronously delivering the ion beam to a motion-encompassing internal tumor volume (ITV) combined with rescanning.Approach. We created 4D optimized treatment plans with proton and carbon ion beams for two patients who had previously received treatment for non-small cell lung cancer. For each patient, we created several treatment plans, using approaches with and without motion mitigation: MP4D, ITV with rescanning, static deliveries to a stationary PTV, and deliveries to a moving tumor without motion compensation. Two sets of plans were optimized with margins or robust uncertainty scenarios. Each treatment plan was delivered using a recently-developed motion-synchronized dose delivery system (M-DDS); dose distributions in water were compared to measurements using gamma index analysis to confirm the accuracy of the calculations. Reconstructed dose distributions on the patient CT were analyzed to assess the dosimetric quality of the deliveries (conformity, uniformity, tumor coverage, and extent of hotspots).Main results. Gamma index analysis pass rates confirmed the accuracy of dose calculations. Dose coverage was >95% for all static and MP4D treatments. The best conformity and the lowest lung doses were achieved with MP4D deliveries. Robust optimization led to higher lung doses compared to conventional optimization for ITV deliveries, but not for MP4D deliveries.Significance. We compared dosimetric quality for two approaches to treating moving tumors with ion beams. Our findings suggest that the MP4D approach, using an M-DDS, provides conformal motion mitigation, with full target coverage and lower OAR doses.
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Affiliation(s)
- Michelle Lis
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, United States of America.,Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany.,Department of Electrical Engineering and Information Technology, Technical University of Darmstadt, German
| | - Wayne Newhauser
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, United States of America.,Department of Radiation Physics, Mary Bird Perkins Cancer Center, Baton Rouge, Louisiana, United States of America
| | - Marco Donetti
- Research and Development Department, CNAO National Center for Oncological Hadrontherapy, Pavia, Italy
| | - Moritz Wolf
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
| | - Timo Steinsberger
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany.,Institute of Condensed Matter Physics, Technical University of Darmstadt, Germany
| | - Athena Paz
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
| | - Christian Graeff
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
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Park S, Demizu Y, Suga M, Taniguchi S, Tanaka S, Maehata I, Takeda M, Takahashi D, Matsuo Y, Sulaiman NS, Terashima K, Tokumaru S, Furukawa K, Okimoto T. Predicted probabilities of brain injury after carbon ion radiotherapy for head and neck and skull base tumors in long-term survivors. Radiother Oncol 2021; 165:152-158. [PMID: 34718054 DOI: 10.1016/j.radonc.2021.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND AND PURPOSE We aimed to determine the risk factors for radiation-induced brain injury (RIBI1) after carbon ion radiotherapy (CIRT) to predict their probabilities in long-term survivors. MATERIALS AND METHODS We evaluated 104 patients with head, neck, and skull base tumors who underwent CIRT in a regimen of 32 fractions and were followed up for at least 24 months. RIBI was assessed using the Common Terminology Criteria for Adverse Events. RESULTS The median follow-up period was 45.5 months; 19 (18.3 %) patients developed grade ≥2 RIBI. The maximal absolute dose covering 5 mL of the brain (D5ml) was the only significant risk factor for grade ≥2 RIBI in the multivariate logistic regression analysis (p = 0.001). The tolerance doses of D5ml for the 5% and 50% probabilities of developing grade ≥2 RIBI were estimated to be 55.4 Gy (relative biological effectiveness [RBE]) and 68.4 Gy (RBE) by a logistic model, respectively. CONCLUSION D5ml was most significantly associated with grade ≥2 RIBI and may enable the prediction of its probability.
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Affiliation(s)
- SungChul Park
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan.
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan; Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Shingo Taniguchi
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Shinichi Tanaka
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Itsumi Maehata
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Mikuni Takeda
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | | | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Kyoji Furukawa
- Biostatistics Center, Kurume University Graduate School of Medicine, Fukuoka, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
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