1
|
Mendez Valenzuela CR, Shin K, Weng HY, Plantenga JM, Vanhaezebrouck IF. Radiotherapy for Canine Apocrine Gland Anal Sac Adenocarcinoma: Survival Outcomes and Side Effects of a Palliative Treatment Protocol of 20 Gy in Five Consecutive Fractions. Vet Sci 2024; 11:219. [PMID: 38787191 PMCID: PMC11125963 DOI: 10.3390/vetsci11050219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/19/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024] Open
Abstract
This research aims to evaluate the outcomes of a radiotherapy protocol, consisting of five fractions of 4 Gy each, resulting in a total dose of 20 Gy for apocrine gland anal sac tumors and local lymph nodes in canines. This protocol was assessed as a palliative treatment for macroscopic tumors alone, or in combination with additional therapies under different scenarios. Medical records from fifty canine patients met the inclusion criteria and were divided into different treatment groups: radiotherapy alone (n = 22, 44%), radiotherapy with chemotherapy or targeted therapy with toceranib (n = 18, 36%), surgery with radiotherapy (n = 5, 10%), and surgery with radiotherapy and chemotherapy or targeted therapy with toceranib (n = 5, 10%). Patients who received radiotherapy alone had a median survival time of 384 days (95% CI 198-569) and 628 days (95% CI 579-676) for RT + additional therapies. The median time to progression for patients with radiotherapy alone was 337 days (95% CI 282-391 days), and 402 days (95% CI 286-517 days) for radiotherapy plus additional treatments. Acute side effects were mild, with the majority having diarrhea (61%), and only one patient developed grade III late effects VRTOG v2 classification; however, this happened 22 months after the first radiotherapy protocol after re-irradiation. The results demonstrate that radiotherapy alone under this protocol provided a comparable median time to progression vs. radiotherapy plus additional treatments while maintaining acceptable side effects. The combination of this protocol with other treatment modalities offers attractive results for local disease control and survival while maintaining acceptable toxicities. Overall, these findings contribute to the growing evidence supporting the role of radiotherapy in managing apocrine gland anal sac adenocarcinoma in dogs.
Collapse
Affiliation(s)
| | - Kelly Shin
- College of Science, Purdue University, West Lafayette, IN 47907, USA
| | - Hsin-Yi Weng
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Jeannie M. Plantenga
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Isabelle F. Vanhaezebrouck
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| |
Collapse
|
2
|
Fijardo M, Kwan JYY, Bissey PA, Citrin DE, Yip KW, Liu FF. The clinical manifestations and molecular pathogenesis of radiation fibrosis. EBioMedicine 2024; 103:105089. [PMID: 38579363 PMCID: PMC11002813 DOI: 10.1016/j.ebiom.2024.105089] [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: 01/08/2024] [Revised: 02/25/2024] [Accepted: 03/12/2024] [Indexed: 04/07/2024] Open
Abstract
Advances in radiation techniques have enabled the precise delivery of higher doses of radiotherapy to tumours, while sparing surrounding healthy tissues. Consequently, the incidence of radiation toxicities has declined, and will likely continue to improve as radiotherapy further evolves. Nonetheless, ionizing radiation elicits tissue-specific toxicities that gradually develop into radiation-induced fibrosis, a common long-term side-effect of radiotherapy. Radiation fibrosis is characterized by an aberrant wound repair process, which promotes the deposition of extensive scar tissue, clinically manifesting as a loss of elasticity, tissue thickening, and organ-specific functional consequences. In addition to improving the existing technologies and guidelines directing the administration of radiotherapy, understanding the pathogenesis underlying radiation fibrosis is essential for the success of cancer treatments. This review integrates the principles for radiotherapy dosimetry to minimize off-target effects, the tissue-specific clinical manifestations, the key cellular and molecular drivers of radiation fibrosis, and emerging therapeutic opportunities for both prevention and treatment.
Collapse
Affiliation(s)
- Mackenzie Fijardo
- Research Institute, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Jennifer Yin Yee Kwan
- Research Institute, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | | | - Deborah E Citrin
- Radiation Oncology Branch, National Cancer Institute, Bethesda, MD, United States of America
| | - Kenneth W Yip
- Research Institute, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Fei-Fei Liu
- Research Institute, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
| |
Collapse
|
3
|
Roohani S, Wiltink LM, Kaul D, Spałek MJ, Haas RL. Update on Dosing and Fractionation for Neoadjuvant Radiotherapy for Localized Soft Tissue Sarcoma. Curr Treat Options Oncol 2024; 25:543-555. [PMID: 38478330 PMCID: PMC10997691 DOI: 10.1007/s11864-024-01188-2] [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] [Accepted: 01/31/2024] [Indexed: 04/06/2024]
Abstract
OPINION STATEMENT Neoadjuvant radiotherapy (RT) over 5-6 weeks with daily doses of 1.8-2.0 Gy to a total dose of 50-50.4 Gy is standard of care for localized high-grade soft tissue sarcomas (STS) of the extremities and trunk wall. One exception is myxoid liposarcomas where the phase II DOREMY trial applying a preoperative dose of 36 Gy in 2 Gy fractions (3-4 weeks treatment) has achieved excellent local control rates of 100% after a median follow-up of 25 months.Hypofractionated preoperative RT has been investigated in a number of phase II single-arm studies suggesting that daily doses of 2.75-8 Gy over 1-3 weeks can achieve similar oncological outcomes to conventional neoadjuvant RT. Prospective data with direct head-to-head comparison to conventional neoadjuvant RT investigating oncological outcomes and toxicity profiles is eagerly awaited.For the entire group of retroperitoneal sarcomas, RT is not the standard of care. The randomized multi-center STRASS trial did not find a benefit in abdominal recurrence-free survival by the addition of preoperative RT. However, for the largest histological subgroup of well-differentiated and grades I and II dedifferentiated liposarcomas, the STRASS trial and the post-hoc propensity-matched STREXIT analysis have identified a possible benefit in survival by preoperative RT. These patients deserve to be informed about the pros and cons of preoperative RT while the longer follow-up data from the STRASS trial is awaited.
Collapse
Affiliation(s)
- Siyer Roohani
- Department of Radiation Oncology, Charité - Universitätsmedizin Berlin, corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
- BIH Charité Junior Clinician Scientist Program, BIH Biomedical Innovation Academy, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
- German Cancer Consortium (DKTK), Partner site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Lisette M Wiltink
- Department of Radiation Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - David Kaul
- Department of Radiation Oncology, Charité - Universitätsmedizin Berlin, corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- German Cancer Consortium (DKTK), Partner site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Mateusz Jacek Spałek
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
- Department of Radiotherapy I, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Rick L Haas
- Department of Radiation Oncology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| |
Collapse
|
4
|
Zhang QS, Hayes JP, Gondi V, Pollack SM. Immunotherapy and Radiotherapy Combinations for Sarcoma. Semin Radiat Oncol 2024; 34:229-242. [PMID: 38508787 DOI: 10.1016/j.semradonc.2023.12.005] [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: 03/22/2024]
Abstract
Sarcomas are a heterogeneous group of bone and soft tissue tumors. Survival outcomes for advanced (unresectable or metastatic) disease remain poor, so therapeutic improvements are needed. Radiotherapy plays an integral role in the neoadjuvant and adjuvant treatment of localized disease as well as in the treatment of metastatic disease. Combining radiotherapy with immunotherapy to potentiate immunotherapy has been used in a variety of cancers other than sarcoma, and there is opportunity to further investigate combining immunotherapy with radiotherapy to try to improve outcomes in sarcoma. In this review, we describe the diversity of the tumor immune microenvironments for sarcomas and describe the immunomodulatory effects of radiotherapy. We discuss studies on the timing of radiotherapy relative to immunotherapy and studies on the radiotherapy dose and fractionation regimen to be used in combination with immunotherapy. We describe the impact of radiotherapy on the tumor immune microenvironment. We review completed and ongoing clinical trials combining radiotherapy with immunotherapy for sarcoma and propose future directions for studies combining immunotherapy with radiotherapy in the treatment of sarcoma.
Collapse
Affiliation(s)
- Qian S Zhang
- Department of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - John P Hayes
- Department of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Vinai Gondi
- Department of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Seth M Pollack
- Division of Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL..
| |
Collapse
|
5
|
Guadagnolo BA, Baldini EH. Are We Ready for Life in the Fast Lane? A Critical Review of Preoperative Hypofractionated Radiotherapy for Localized Soft Tissue Sarcoma. Semin Radiat Oncol 2024; 34:180-194. [PMID: 38508783 DOI: 10.1016/j.semradonc.2023.12.003] [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: 03/22/2024]
Abstract
This critical review aims to summarize the relevant published data regarding hypofractionation regimens for preoperative radiation therapy (RT) prior to surgery for soft tissue sarcoma (STS) of the extremity or superficial trunk. We identified peer-reviewed publications using a PubMed search on the MeSH headings of "soft tissue sarcoma" AND "hypofractionated radiation therapy." To obtain complication data on similar anatomical radiotherapeutic scenarios we also searched "hypofractionated radiation therapy" AND "melanoma" as well as "hypofractionated radiation therapy" AND "breast cancer." We then used reference lists from relevant articles to obtain additional pertinent publications. We also incorporated relevant abstracts presented at international sarcoma meetings and relevant clinical trials as listed on the ClinicalTrials.gov website. Detailed data are presented and contextualized for ultra-hypofractionated and moderately hypofractionated regimens with respect to local control, wound complications, and amputation rates. Comparative data are also presented for late toxicities including: fibrosis, joint limitation, edema, skin integrity, and bone fracture or necrosis. These data are compared to a standard regimen of 50 Gy in 25 daily fractions delivered over 5 weeks. This analysis supports the continued use of a standard regimen for preoperative RT for STS of 25 × 2 Gy over 5 weeks without concurrent chemotherapy. Use of concurrent chemotherapy with preoperative RT for STS should be reserved for well-designed clinical trials. A randomized trial of ultra-hypofractionated and moderately hypofractionated pre op RT for STS is warranted, but it is critical for the primary endpoint (or co-primary endpoint) to be late toxicity to: bone, soft tissue, joint, and skin.
Collapse
Affiliation(s)
| | - Elizabeth H Baldini
- Department of Radiation Oncology, Dana Farber/Brigham Women's Hospital, Boston, MA
| |
Collapse
|
6
|
Wang Y, Gao Z, Zhao W, Li H, Meng X, Li J. A retrospective analysis of optimal timing of thoracic radiotherapy for driver gene-negative metastatic non-small cell lung cancer. Thorac Cancer 2024; 15:642-653. [PMID: 38323356 DOI: 10.1111/1759-7714.15235] [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: 11/04/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND The optimal timing of thoracic radiotherapy (TRT) in driver-gene-negative metastatic non-small cell lung cancer (mNSCLC) patients was retrospectively investigated based on survival and safety profile. METHODS The efficacy and safety data of driver-gene-negative mNSCLC patients treated with TRT during maintenance after first-line therapy was collected. Patients whose primary tumor and metastatic lesions remained no progression during maintenance and then received TRT were categorized as the NP (no progression) group, while patients who experienced slow progression during maintenance without reaching progressive disease and then received TRT were categorized as the SP (slow progression) group. The efficacy and adverse events of TRT were analyzed. RESULTS In total, 149 driver-gene-negative mNSCLC patients treated with TRT during maintenance were enrolled into the study, with 119 in the NP group and 30 in the SP group. After a median follow-up of 30.83 (range: 26.62-35.04) months, the median progression-free survival (PFS) in the NP group was 11.13 versus 9.53 months in the SP group (HR 0.599, p = 0.017). The median overall survival (OS) in the NP group was 32.27 versus 25.57 months in the SP group (HR 0.637, p = 0.088). The median PFS after radiotherapy (rPFS) was 6.33 versus 3.90 months (HR 0.288, p < 0.001). The adverse events were tolerable and manageable in both groups without significant difference (p > 0.05). CONCLUSION The addition of TRT during the pre-emptive no progression phase was associated with a significantly longer PFS than during the delayed slow progression phase and had an acceptable safety profile. Our results might support the earlier initiation of TRT after induction therapy for some patients with driver-gene-negative mNSCLC.
Collapse
Affiliation(s)
- Yanan Wang
- Department of Radiation Oncology, Shandong University Cancer Center, Jinan, China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Zhenhua Gao
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Wen Zhao
- Department of Medical Oncology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hongxin Li
- School of Pharmacy, Shandong University, Jinan, China
| | - Xue Meng
- Department of Radiation Oncology, Shandong University Cancer Center, Jinan, China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Jisheng Li
- Department of Medical Oncology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| |
Collapse
|
7
|
Starling MTM, Thibodeau S, de Sousa CFPM, Restini FCF, Viani GA, Gouveia AG, Mendez LC, Marta GN, Moraes FY. Optimizing Clinical Implementation of Hypofractionation: Comprehensive Evidence Synthesis and Practical Guidelines for Low- and Middle-Income Settings. Cancers (Basel) 2024; 16:539. [PMID: 38339290 PMCID: PMC10854666 DOI: 10.3390/cancers16030539] [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: 11/06/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024] Open
Abstract
The global cancer burden, especially in low- and middle-income countries (LMICs), worsens existing disparities, amplified by the rising costs of advanced treatments. The shortage of radiation therapy (RT) services is a significant issue in LMICs. Extended conventional treatment regimens pose significant challenges, especially in resource-limited settings. Hypofractionated radiotherapy (HRT) and ultra-hypofractionated/stereotactic body radiation therapy (SBRT) offer promising alternatives by shortening treatment durations. This approach optimizes the utilization of radiotherapy machines, making them more effective in meeting the growing demand for cancer care. Adopting HRT/SBRT holds significant potential, especially in LMICs. This review provides the latest clinical evidence and guideline recommendations for the application of HRT/SBRT in the treatment of breast, prostate, and lung cancers. It emphasizes the critical importance of rigorous training, technology, stringent quality assurance, and safety protocols to ensure precise and secure treatments. Additionally, it addresses practical considerations for implementing these treatments in LMICs, highlighting the need for comprehensive support and collaboration to enhance patient access to advanced cancer care.
Collapse
Affiliation(s)
| | - Stephane Thibodeau
- Division of Radiation Oncology, Department of Oncology, Kingston General Hospital, Queen’s University, Kingston, ON K7L 3N6, Canada
| | | | | | - Gustavo A. Viani
- Department of Medical Imagings, Ribeirão Preto Medical School, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto 14049-900, Brazil
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
| | - Andre G. Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
- Division of Radiation Oncology, Department of Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, ON L8V 5C2, Canada
| | - Lucas C. Mendez
- Division of Radiation Oncology, Department of Oncology, London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Gustavo Nader Marta
- Radiation Oncology Department, Hospital Sirio Libanês, Sao Paulo 01308-050, Brazil
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
| | - Fabio Ynoe Moraes
- Division of Radiation Oncology, Department of Oncology, Kingston General Hospital, Queen’s University, Kingston, ON K7L 3N6, Canada
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
| |
Collapse
|
8
|
Haldar S, Sarkar B, Dixit A. Dose to Organ at Risk and its Characteristic Variation with the Clinically Used Different Prescription Levels for Early-stage Left-sided Breast Cancer. Clin Oncol (R Coll Radiol) 2024; 36:21-29. [PMID: 38040550 DOI: 10.1016/j.clon.2023.11.038] [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: 01/06/2023] [Revised: 05/27/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
AIMS To evaluate the organ at risk (OAR) dose and its characteristic variation with different clinically usable prescription doses (RxD) for breast and chest wall radiotherapy in patients with early-stage left-sided breast cancer. MATERIALS AND METHODS In total, 145 patients with early-stage breast cancers (T1N0M0-T2N0M0) on the left side were treated with radiotherapy after a modified radical mastectomy or breast conservation surgery, with a mean age of 45.1 ± 21.6 years. The patient received 4050 cGy of field-in-field (three-dimensional conformal radiotherapy) treatment limited to the breast or chest wall, excluding the supraclavicular node, axillary node and internal mammary chain, over 15 fractions. Additional plans of 5000 cGy/25 fractions, 4500 cGy/20 fractions and 2600 cGy/5 fractions were created with no or minor changes to the original plan. Mathematical modelling was used to study the distinctive change in the dose-volume characteristics for various OARs as a function of the RxD. OAR dosages, both absolute and normalised, were expressed in terms of the RxD. The mathematical (functional) relationship between OAR doses and different prescription levels was deduced by the least squares fit method. RESULT The left lung mean dose, V5Gy (%), V10Gy (%) and V20Gy (%) and the heart mean dose, V10Gy (%) and V20Gy (%) were evaluated. The dose-volume parameters showed a parabolic variation (x2) with the RxD. Prescription normalised OAR doses showed a linear relationship with the RxD; relative dose increased with diminishing RxD. Normalised lung and heart mean doses exhibited saturation (linear relationship) with RxD variation. Paired sample t-test results between RxD versus all evaluated parameters were found to be statistically significant (P = 0.004). The Pearson correlation coefficient between different prescription levels for left lung mean dose (range 0.942-1.0), heart mean dose (range 1.0-1.0), left lung V5Gy (%) (range 0.987-1.0), left lung V10Gy (%) (range 0.991-0.999), heart V10Gy (%) (range 0.998-1.0). CONCLUSION The functional form of absolute OAR dose-volume parameters versus RxD is parabolic and the RxD normalised OAR dose-volume parameter versus RxD is a straight line with a negative slope as RxD increases. This indicates an increase in the relative OAR dose-volume parameters if the RxD is reduced. This study is the first of its kind to compare the OAR doses as a function of clinically used degenerate prescription levels. These data will help to comprehend the OAR doses while adopting a new dose fractionation regimen and reviewing the radiotherapy treatment plans.
Collapse
Affiliation(s)
- S Haldar
- Department of Radiation Oncology, Saroj Gupta Cancer Centre and Research Institute, Kolkata, India; Department of Physics, Institute of Applied Science and Humanities, GLA University, Mathura, India
| | - B Sarkar
- Department of Radiation Oncology, Apollo Multispeciality Hospital, Kolkata, India.
| | - A Dixit
- Department of Mathematics, Institute of Applied Science and Humanities, GLA University, Mathura, India
| |
Collapse
|
9
|
Katano A, Kasuga Y, Ohira S, Minamitani M, Yamashita H. Hypofractionated Radiotherapy as a Standalone Treatment Modality for Locally Advanced Type B2 Thymoma in an Octogenarian Patient: 45 Gy in 15 Fractions. Cureus 2024; 16:e51528. [PMID: 38304685 PMCID: PMC10833057 DOI: 10.7759/cureus.51528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/01/2024] [Indexed: 02/03/2024] Open
Abstract
Thymic epithelial tumors (TETs), particularly type B2 thymomas, are rare neoplasms primarily found in the anterior mediastinum. The current therapeutic approach includes surgery, chemotherapy, and radiotherapy, but there is limited research on radiotherapy as a standalone treatment. This case report aims to elucidate the clinical outcomes of hypofractionated radiotherapy as a standalone treatment for locally advanced type B2 thymoma, offering insights into its potential efficacy and role in clinical practice.
Collapse
Affiliation(s)
- Atsuto Katano
- Radiology, The University of Tokyo Hospital, Tokyo, JPN
| | - Yuki Kasuga
- Radiology, The University of Tokyo Hospital, Tokyo, JPN
| | - Shingo Ohira
- Comprehensive Radiation Oncology, The University of Tokyo, Tokyo, JPN
| | | | | |
Collapse
|
10
|
Zhai M, Zhang Z, Wang H, Ren J, Zhang S, Li M, Liu L, Li L, Zhang L, Li X, Zhang T, Lin Z. Efficacy and safety of radiotherapy combined with anti-angiogenic therapy and immune checkpoint inhibitors in MSS/pMMR metastatic colorectal cancer. Cancer Med 2023; 13:e6820. [PMID: 38112050 PMCID: PMC10807612 DOI: 10.1002/cam4.6820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 12/20/2023] Open
Abstract
PURPOSE Several studies have demonstrated the effectiveness of anti-angiogenic drugs in combination with immune checkpoint inhibitors (ICIs) in patients with microsatellite stable (MSS) or mismatch repair proficient (pMMR) metastatic colorectal cancer (mCRC). However, whether combination radiotherapy (RT) can further improve the prognosis of mCRC patients after second-line treatment remains to be explored. METHODS Retrospective analysis of data from mCRC patients who received anti-angiogenic targeted therapy (TT) and immunotherapy (IT) with or without RT after the failure of standard therapy. Progression-free survival (PFS), overall survival (OS), objective response rate (ORR), disease control rate (DCR), and safety were evaluated. RESULTS A total of 82 patients who received TT + IT were analyzed. For RT group (n = 42) versus NRT group (n = 40), ORR was 21.4% (9/42) versus 5.0% (2/40); DCR was 83.8% (35/42) versus 65.0% (26/40). Compared with NRT group, RT improved PFS (median: 5.0 vs. 3.6 months; p = 0.04) and OS (median: 15.2 vs. 7.2 months; p = 0.01). In addition, in the population receiving RT, the PFS of RT sequential/simultaneous TT + IT was superior to TT + IT sequential RT (median: 7.1 vs. 6.2 vs. 3.5 months, p = 0.004). Multivariate analysis suggested RT was an independent prognostic factor for PFS and OS. No treatment-related deaths were reported. CONCLUSIONS Compared with TT + IT, RT combined with TT + IT improved survival outcomes in MSS/pMMR mCRC patients, with manageable toxicity. RT sequential/simultaneous TT + IT treatment is expected to be the optimal strategy for MSS/PMMR mCRC.
Collapse
Affiliation(s)
- Menglan Zhai
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Zixuan Zhang
- Queen Mary School, Medical DepartmentNanchang UniversityNanchangJiangxiChina
| | - Haihong Wang
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Jinghua Ren
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Key Laboratory of Precision Radiation OncologyWuhanChina
| | - Sheng Zhang
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Key Laboratory of Precision Radiation OncologyWuhanChina
| | - Mingjie Li
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lichao Liu
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lisha Li
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Lan Zhang
- Department of RadiologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Xin Li
- Department of RadiologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Tao Zhang
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Key Laboratory of Precision Radiation OncologyWuhanChina
- Institute of Radiation OncologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Zhenyu Lin
- Cancer Center, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Hubei Key Laboratory of Precision Radiation OncologyWuhanChina
- Institute of Radiation OncologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| |
Collapse
|
11
|
Liu S, Wang W, Hu S, Jia B, Tuo B, Sun H, Wang Q, Liu Y, Sun Z. Radiotherapy remodels the tumor microenvironment for enhancing immunotherapeutic sensitivity. Cell Death Dis 2023; 14:679. [PMID: 37833255 PMCID: PMC10575861 DOI: 10.1038/s41419-023-06211-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/22/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
Cancer immunotherapy has transformed traditional treatments, with immune checkpoint blockade being particularly prominent. However, immunotherapy has minimal benefit for patients in most types of cancer and is largely ineffective in some cancers (such as pancreatic cancer and glioma). A synergistic anti-tumor response may be produced through the combined application with traditional tumor treatment methods. Radiotherapy (RT) not only kills tumor cells but also triggers the pro-inflammatory molecules' release and immune cell infiltration, which remodel the tumor microenvironment (TME). Therefore, the combination of RT and immunotherapy is expected to achieve improved efficacy. In this review, we summarize the effects of RT on cellular components of the TME, including T cell receptor repertoires, different T cell subsets, metabolism, tumor-associated macrophages and other myeloid cells (dendritic cells, myeloid-derived suppressor cells, neutrophils and eosinophils). Meanwhile, non-cellular components such as lactate and extracellular vesicles are also elaborated. In addition, we discuss the impact of different RT modalities on tumor immunity and issues related to the clinical practice of combination therapy.
Collapse
Affiliation(s)
- Senbo Liu
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
- Henan Institute of Interconnected Intelligent Health Management, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Wenkang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Shengyun Hu
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Bin Jia
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Baojing Tuo
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
- Henan Institute of Interconnected Intelligent Health Management, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Haifeng Sun
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Qiming Wang
- Department of Internal Medicine, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 450001, Zhengzhou, China.
| | - Yang Liu
- Department of Radiotherapy, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 450001, Zhengzhou, China.
| | - Zhenqiang Sun
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China.
- Henan Institute of Interconnected Intelligent Health Management, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China.
| |
Collapse
|
12
|
Brahme A. TP53 and the Ultimate Biological Optimization Steps of Curative Radiation Oncology. Cancers (Basel) 2023; 15:4286. [PMID: 37686565 PMCID: PMC10487030 DOI: 10.3390/cancers15174286] [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: 07/25/2023] [Revised: 08/11/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
The new biological interaction cross-section-based repairable-homologically repairable (RHR) damage formulation for radiation-induced cellular inactivation, repair, misrepair, and apoptosis was applied to optimize radiation therapy. This new formulation implies renewed thinking about biologically optimized radiation therapy, suggesting that most TP53 intact normal tissues are low-dose hypersensitive (LDHS) and low-dose apoptotic (LDA). This generates a fractionation window in LDHS normal tissues, indicating that the maximum dose to organs at risk should be ≤2.3 Gy/Fr, preferably of low LET. This calls for biologically optimized treatments using a few high tumor dose-intensity-modulated light ion beams, thereby avoiding secondary cancer risks and generating a real tumor cure without a caspase-3-induced accelerated tumor cell repopulation. Light ions with the lowest possible LET in normal tissues and high LET only in the tumor imply the use of the lightest ions, from lithium to boron. The high microscopic heterogeneity in the tumor will cause local microscopic cold spots; thus, in the last week of curative ion therapy, when there are few remaining viable tumor clonogens randomly spread in the target volume, the patient should preferably receive the last 10 GyE via low LET, ensuring perfect tumor coverage, a high cure probability, and a reduced risk for adverse normal tissue reactions. Interestingly, such an approach would also ensure a steeper rise in tumor cure probability and a higher complication-free cure, as the few remaining clonogens are often fairly well oxygenated, eliminating a shallower tumor response due to inherent ion beam heterogeneity. With the improved fractionation proposal, these approaches may improve the complication-free cure probability by about 10-25% or even more.
Collapse
Affiliation(s)
- Anders Brahme
- Department of Oncology-Pathology, Karolinska Institutet,17176 Stockholm, Sweden
| |
Collapse
|
13
|
Le Reun E, Granzotto A, Pêtre A, Bodgi L, Beldjoudi G, Lacornerie T, Vallet V, Bouchet A, Al-Choboq J, Bourguignon M, Thariat J, Bourhis J, Lartigau E, Foray N. Influence of the Hypersensitivity to Low Dose Phenomenon on the Tumor Response to Hypofractionated Stereotactic Body Radiation Therapy. Cancers (Basel) 2023; 15:3979. [PMID: 37568795 PMCID: PMC10416967 DOI: 10.3390/cancers15153979] [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: 07/04/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Stereotactic body radiation therapy (SBRT) has made the hypofractionation of high doses delivered in a few sessions more acceptable. While the benefits of hypofractionated SBRT have been attributed to additional vascular, immune effects, or specific cell deaths, a radiobiological and mechanistic model is still needed. By considering each session of SBRT, the dose is divided into hundreds of minibeams delivering some fractions of Gy. In such a dose range, the hypersensitivity to low dose (HRS) phenomenon can occur. HRS produces a biological effect equivalent to that produced by a dose 5-to-10 times higher. To examine whether HRS could contribute to enhancing radiation effects under SBRT conditions, we exposed tumor cells of different HRS statuses to SBRT. Four human HRS-positive and two HRS-negative tumor cell lines were exposed to different dose delivery modes: a single dose of 0.2 Gy, 2 Gy, 10 × 0.2 Gy, and a single dose of 2 Gy using a non-coplanar isocentric minibeams irradiation mode were delivered. Anti-γH2AX immunofluorescence, assessing DNA double-strand breaks (DSB), was applied. In the HRS-positive cells, the DSB produced by 10 × 0.2 Gy and 2 Gy, delivered by tens of minibeams, appeared to be more severe, and they provided more highly damaged cells than in the HRS-negative cells, suggesting that more severe DSB are induced in the "SBRT modes" conditions when HRS occurs in tumor. Each SBRT session can be viewed as hyperfractionated dose delivery by means of hundreds of low dose minibeams. Under current SBRT conditions (i.e., low dose per minibeam and not using ultra-high dose-rate), the response of HRS-positive tumors to SBRT may be enhanced significantly. Interestingly, similar conclusions were reached with HRS-positive and HRS-negative untransformed fibroblast cell lines, suggesting that the HRS phenomenon may also impact the risk of post-RT tissue overreactions.
Collapse
Affiliation(s)
- Eymeric Le Reun
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
- Service de Radio-Oncologie, Centre Hospitalier Universitaire Vaudois (CHUV), 46 Rue du Bugnon, 1011 Lausanne, Switzerland; (V.V.); (J.B.)
| | - Adeline Granzotto
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| | - Adeline Pêtre
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
- Département de Radiothérapie, Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France;
| | - Larry Bodgi
- Department of Radiation Oncology, American University of Beirut Medical Center, Riad El-Solh, Beirut 1107-2020, Lebanon;
| | - Guillaume Beldjoudi
- Département de Radiothérapie, Centre Léon-Bérard, 28 Rue Laennec, 69008 Lyon, France;
| | - Thomas Lacornerie
- Département de Radiothérapie, Centre Oscar-Lambret, 3 Rue Frédéric Combemale, 59000 Lille, France; (T.L.); (E.L.)
| | - Véronique Vallet
- Service de Radio-Oncologie, Centre Hospitalier Universitaire Vaudois (CHUV), 46 Rue du Bugnon, 1011 Lausanne, Switzerland; (V.V.); (J.B.)
| | - Audrey Bouchet
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| | - Joëlle Al-Choboq
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| | - Michel Bourguignon
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
- Département de Biophysique et Médecine Nucléaire, Université Paris Saclay, Versailles St. Quentin en Yvelines, 78035 Versailles, France
| | - Juliette Thariat
- Département de Radiothérapie, Centre François-Baclesse, 3 Avenue du Général Harris, 14076 Caen, France;
| | - Jean Bourhis
- Service de Radio-Oncologie, Centre Hospitalier Universitaire Vaudois (CHUV), 46 Rue du Bugnon, 1011 Lausanne, Switzerland; (V.V.); (J.B.)
| | - Eric Lartigau
- Département de Radiothérapie, Centre Oscar-Lambret, 3 Rue Frédéric Combemale, 59000 Lille, France; (T.L.); (E.L.)
| | - Nicolas Foray
- U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France; (E.L.R.); (A.G.); (A.P.); (A.B.); (J.A.-C.); (M.B.)
| |
Collapse
|
14
|
Lee SL, Bassetti MF, Rusthoven CG. The Role of Stereotactic Body Radiation Therapy in the Management of Liver Metastases. Semin Radiat Oncol 2023; 33:181-192. [PMID: 36990635 DOI: 10.1016/j.semradonc.2022.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
The liver is a common site for metastatic spread for various primary tumor histologies. Stereotactic body radiation therapy (SBRT) is a non-invasive treatment technique with broad patient candidacy for the ablation of tumors in the liver and other organs. SBRT involves focused, high-dose radiation therapy delivered in one to several treatments, resulting in high rates of local control. Use of SBRT for ablation of oligometastatic disease has increased in recent years and emerging prospective data have demonstrated improvements in progression free and overall survival in some settings. When delivering SBRT to liver metastases, clinicians must balance the priorities of delivering ablative tumor dosing while respecting dose constraints to surrounding organs at risk (OARs). Motion management techniques are crucial for meeting dose constraints, ensuring low rates of toxicity, maintaining quality of life, and can allow for dose escalation. Advanced radiotherapy delivery approaches including proton therapy, robotic radiotherapy, and real-time MR-guided radiotherapy may further improve the accuracy of liver SBRT. In this article, we review the rationale for oligometastases ablation, the clinical outcomes with liver SBRT, tumor dose and OAR considerations, and evolving strategies to improve liver SBRT delivery.
Collapse
Affiliation(s)
- Sangjune Laurence Lee
- Division of Radiation Oncology, University of Calgary, Tom Baker Cancer Centre, Calgary, AB, Canada.
| | - Michael F Bassetti
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI
| | - Chad G Rusthoven
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, CO
| |
Collapse
|
15
|
Montero A, Alvarez B. The 5Rs dilemma of radiotherapy for non-malignant diseases: 5Rs to darken OR 5Rs to shine. Rep Pract Oncol Radiother 2023; 28:74-78. [PMID: 37122917 PMCID: PMC10132200 DOI: 10.5603/rpor.a2023.0001] [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: 09/06/2022] [Accepted: 12/15/2022] [Indexed: 05/02/2023] Open
Abstract
Many benign diseases, so called because they are not a direct cause of death, nevertheless cause significant damage to the health of patients due to the associated pain, reduced functionality, increased disability and the negative impact they have on quality of life, which, together with the limited efficacy of many of the available treatments, make their management a challenge for every specialist. Radiotherapy, which has demonstrated its efficacy not only against cancer but also in many non-tumorous diseases, appears as a therapeutic option that deserves to be taken into account. However, there is still much resistance to considering the use of radiotherapy as a valid and acceptable alternative. The 5Rs to darken summarize the doubts and contradictions many specialists face to accept radiotherapy in non-neoplastic diseases. However, other 5Rs (to shine) can be argued to claim for the safety, reliability, and usefulness of radiation treatment for benign disease and as radiotherapy specialists we have to help the evidence shine and the darkness disappear.
Collapse
Affiliation(s)
- Angel Montero
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
- Faculty of Health Sciences, Universidad Camilo José Cela, Madrid, Spain
| | - Beatriz Alvarez
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
- Faculty of Health Sciences, Universidad Camilo José Cela, Madrid, Spain
| |
Collapse
|
16
|
Yarnold JR, Brunt AM, Chatterjee S, Somaiah N, Kirby AM. From 25 Fractions to Five: How Hypofractionation has Revolutionised Adjuvant Breast Radiotherapy. Clin Oncol (R Coll Radiol) 2022; 34:332-339. [PMID: 35318945 DOI: 10.1016/j.clon.2022.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 11/22/2022]
Abstract
There is a sound empirical basis for hypofractionation in radiotherapy for breast cancer. This article reviews the radiobiological implications of hypofractionation in breast cancer derived from a series of clinical trials that began when 50 Gy in 25 fractions over 5 weeks was commonplace. These trials led first to 40 Gy in 15 fractions over 3 weeks and, subsequently, to 26 Gy in five fractions over 1 week being adopted as standards of care for many patients prescribed whole- or partial-breast radiotherapy after primary surgery.
Collapse
Affiliation(s)
- J R Yarnold
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - A M Brunt
- School of Medicine, University of Keele, Keele, UK
| | - S Chatterjee
- Department of Radiotherapy, Tata Medical Centre, Kolkata, India
| | - N Somaiah
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK; Department of Radiotherapy, Royal Marsden NHS Foundation Trust, Sutton, UK
| | - A M Kirby
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK; Department of Radiotherapy, Royal Marsden NHS Foundation Trust, Sutton, UK.
| |
Collapse
|
17
|
Aitken K, Mukherjee S. When Less is More: The Rising Tide of Hypofractionation. Clin Oncol (R Coll Radiol) 2022; 34:277-279. [PMID: 35305887 PMCID: PMC8926304 DOI: 10.1016/j.clon.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/01/2022] [Indexed: 11/25/2022]
|