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Shi W, Tanzhu G, Chen L, Ning J, Wang H, Xiao G, Peng H, Jing D, Liang H, Nie J, Yi M, Zhou R. Radiotherapy in Preclinical Models of Brain Metastases: A Review and Recommendations for Future Studies. Int J Biol Sci 2024; 20:765-783. [PMID: 38169621 PMCID: PMC10758094 DOI: 10.7150/ijbs.91295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
Brain metastases (BMs) frequently occur in primary tumors such as lung cancer, breast cancer, and melanoma, and are associated with notably short natural survival. In addition to surgical interventions, chemotherapy, targeted therapy, and immunotherapy, radiotherapy (RT) is a crucial treatment for BM and encompasses whole-brain radiotherapy (WBRT) and stereotactic radiosurgery (SRS). Validating the efficacy and safety of treatment regimens through preclinical models is imperative for successful translation to clinical application. This not only advances fundamental research but also forms the theoretical foundation for clinical study. This review, grounded in animal models of brain metastases (AM-BM), explores the theoretical underpinnings and practical applications of radiotherapy in combination with chemotherapy, targeted therapy, immunotherapy, and emerging technologies such as nanomaterials and oxygen-containing microbubbles. Initially, we provided a concise overview of the establishment of AM-BMs. Subsequently, we summarize key RT parameters (RT mode, dose, fraction, dose rate) and their corresponding effects in AM-BMs. Finally, we present a comprehensive analysis of the current research status and future directions for combination therapy based on RT. In summary, there is presently no standardized regimen for AM-BM treatment involving RT. Further research is essential to deepen our understanding of the relationships between various parameters and their respective effects.
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Affiliation(s)
- Wen Shi
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Guilong Tanzhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Liu Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Jiaoyang Ning
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Hongji Wang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Gang Xiao
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Haiqin Peng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Di Jing
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
| | - Huadong Liang
- Department of Technology, Hunan SJA Laboratory Animal Co., Ltd., Changsha, Hunan Province, China
| | - Jing Nie
- Department of Technology, Hunan SJA Laboratory Animal Co., Ltd., Changsha, Hunan Province, China
| | - Min Yi
- Department of Technology, Hunan SJA Laboratory Animal Co., Ltd., Changsha, Hunan Province, China
| | - Rongrong Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
- Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China
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Kraynak J, Marciscano AE. Image-guided radiation therapy of tumors in preclinical models. Methods Cell Biol 2023; 180:1-13. [PMID: 37890924 DOI: 10.1016/bs.mcb.2023.02.008] [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] [Indexed: 03/29/2023]
Abstract
Image-guided radiation therapy (IGRT) platforms for preclinical research represent an important advance for radiation research. IGRT-based platforms more accurately model the delivery of therapeutic ionizing radiation as delivered in clinical practice which permits more translationally and clinically relevant radiation biology research. Fundamentally, IGRT allows for precise delivery of ionizing radiation in order to (1) ensure that the tumor and/or target of interest is adequately covered by the prescribed radiation dose, and (2) to minimize the radiation dose delivered to adjacent nontargeted or normal tissues. Here, we describe the techniques and outline a general workflow employed for IGRT in preclinical in vivo tumor models.
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Affiliation(s)
- Jeffrey Kraynak
- Department of Radiation Oncology, Weill Cornell Medicine, New York, NY, United States.
| | - Ariel E Marciscano
- Department of Radiation Oncology, Weill Cornell Medicine, New York, NY, United States
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3
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Valiente M, Van Swearingen AED, Anders CK, Bairoch A, Boire A, Bos PD, Cittelly DM, Erez N, Ferraro GB, Fukumura D, Gril B, Herlyn M, Holmen SL, Jain RK, Joyce JA, Lorger M, Massague J, Neman J, Sibson NR, Steeg PS, Thorsen F, Young LS, Varešlija D, Vultur A, Weis-Garcia F, Winkler F. Brain Metastasis Cell Lines Panel: A Public Resource of Organotropic Cell Lines. Cancer Res 2020; 80:4314-4323. [PMID: 32641416 PMCID: PMC7572582 DOI: 10.1158/0008-5472.can-20-0291] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/27/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022]
Abstract
Spread of cancer to the brain remains an unmet clinical need in spite of the increasing number of cases among patients with lung, breast cancer, and melanoma most notably. Although research on brain metastasis was considered a minor aspect in the past due to its untreatable nature and invariable lethality, nowadays, limited but encouraging examples have questioned this statement, making it more attractive for basic and clinical researchers. Evidences of its own biological identity (i.e., specific microenvironment) and particular therapeutic requirements (i.e., presence of blood-brain barrier, blood-tumor barrier, molecular differences with the primary tumor) are thought to be critical aspects that must be functionally exploited using preclinical models. We present the coordinated effort of 19 laboratories to compile comprehensive information related to brain metastasis experimental models. Each laboratory has provided details on the cancer cell lines they have generated or characterized as being capable of forming metastatic colonies in the brain, as well as principle methodologies of brain metastasis research. The Brain Metastasis Cell Lines Panel (BrMPanel) represents the first of its class and includes information about the cell line, how tropism to the brain was established, and the behavior of each model in vivo. These and other aspects described are intended to assist investigators in choosing the most suitable cell line for research on brain metastasis. The main goal of this effort is to facilitate research on this unmet clinical need, to improve models through a collaborative environment, and to promote the exchange of information on these valuable resources.
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Affiliation(s)
- Manuel Valiente
- Brain Metastasis Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain.
| | | | - Carey K Anders
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Durham, North Carolina
| | - Amos Bairoch
- CALIPHO group, Swiss Institute of Bioinformatics, Geneva, Switzerland
| | - Adrienne Boire
- Human Oncology and Pathogenesis Program, Department of Neurology, Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Paula D Bos
- Department of Pathology, and Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - Diana M Cittelly
- Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Neta Erez
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Gino B Ferraro
- E.L. Steele Laboratories, Department of Radiation Oncology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | - Dai Fukumura
- E.L. Steele Laboratories, Department of Radiation Oncology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | | | - Meenhard Herlyn
- Molecular & Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania
| | - Sheri L Holmen
- Huntsman Cancer Institute and Department of Surgery, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Rakesh K Jain
- E.L. Steele Laboratories, Department of Radiation Oncology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | - Johanna A Joyce
- Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Mihaela Lorger
- Brain Metastasis Research Group, School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Joan Massague
- Cancer Cell Biology Program, Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Josh Neman
- Departments of Neurological Surgery, Physiology & Neuroscience, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Nicola R Sibson
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | | | - Frits Thorsen
- The Molecular Imaging Center, Department of Biomedicine, University of Bergen, Bergen, Norway
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Key Laboratory of Brain Functional Remodeling, Shandong, Jinan, P.R. China
| | - Leonie S Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Damir Varešlija
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Adina Vultur
- Molecular & Cellular Oncogenesis Program, The Wistar Institute, Philadelphia, Pennsylvania
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Frances Weis-Garcia
- Antibody & Bioresource Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Frank Winkler
- Neurology Clinic and National Center for Tumor Diseases, University Hospital Heidelberg, and Clinical Cooperation Unit Neurooncology, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
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Peng L, Wang Y, Fei S, Wei C, Tong F, Wu G, Ma H, Dong X. The effect of combining Endostar with radiotherapy on blood vessels, tumor-associated macrophages, and T cells in brain metastases of Lewis lung cancer. Transl Lung Cancer Res 2020; 9:745-760. [PMID: 32676336 PMCID: PMC7354151 DOI: 10.21037/tlcr-20-500] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Combining Endostar (ES) with radiotherapy (RT) has shown a promising therapeutic effect on non-small cell lung carcinoma with brain metastases (BMs) in clinical practice. However, the specific mechanism is not yet fully understood. The present study aimed to investigate the effects of ES on blood vessels, tumor-associated macrophages (TAMs), and T cells in a tumor microenvironment treated with RT. Methods BM models were established by stereotactic and intracarotid injection of luciferase-Lewis lung cancer (LLC) cells into female C57BL mice. The animals were randomly divided into 4 groups: normal saline (NS), ES, RT, and ES plus radiotherapy (ES + RT) groups. Tumor size was determined with the IVIS imaging system. Tumor specimens were stained with CD34 and α-SMA to investigate tumor vascular changes. The proportions of TAMs, CD4+ T cells, and CD8+ T cells in tumor tissues were determined by flow cytometry and immunofluorescence. The expressions of hypoxia-inducible factor 1α (HIF-1α) and CXCR4 were deduced using western blotting and immunohistochemistry (IHC). Results ES + RT significantly suppressed tumor growth compared to the other 3 groups. RT decreased M1 and increased M2 in microglial cells and bone marrow-derived macrophages (BMDMs) relative to NS, while ES had the opposite effect. The ratio of CD8+T/CD4+T was increased in the ES + RT group compared to the other 3 groups. Tumor vascular maturity (α-SMA+/CD34+) was increased while HIF-1α was significantly suppressed in the ES + RT group. CXCR4 expression, which is involved in TAM recruitment, increased following RT, whereas, ES attenuated its expression. Conclusions Our findings suggest that ES can promote the normalization of tumor blood vessels and increase the anti-tumor immune-related immune cells infiltrating the tumor following RT treatment.
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Affiliation(s)
- Ling Peng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ying Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shihong Fei
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chunhua Wei
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Fan Tong
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hong Ma
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaorong Dong
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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5
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Wang S, Wu CC, Zhang H, Karakatsani ME, Wang YF, Han Y, Chaudhary KR, Wuu CS, Konofagou E, Cheng SK. Focused ultrasound induced-blood-brain barrier opening in mouse brain receiving radiosurgery dose of radiation enhances local delivery of systemic therapy. Br J Radiol 2020; 93:20190214. [PMID: 31999201 DOI: 10.1259/bjr.20190214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Investigate the temporal effects of focused ultrasound (FUS)-induced blood-brain barrier (BBB) opening in post-radiotherapy mouse brains. METHODS AND MATERIALS C57B6 mice without tumors were used to simulate the scenario after gross total resection (GTR) of brain tumor. Radiation dose of 6 Gy x 5 was delivered to one-hemisphere of the mouse brain. FUS-induced BBB-opening was delivered to the irradiated and non-irradiated brain and was confirmed with MRI. Dynamic MRI was performed to evaluate blood vessel permeability. Two time points were selected: acute (2 days after radiation) and chronic (31 days after radiation). RESULTS BBB opening was achieved after FUS in the irradiated field as compared to the contralateral non-irradiated brain without any decrease in permeability. In the acute group, a trend for higher gadolinium concentration was observed in radiated field. CONCLUSION Localized BBB-opening can be successfully achieved without loss of efficacy by FUS as early as 2 days after radiotherapy. ADVANCES IN KNOWLEDGE Adjuvant radiation after GTR is commonly used for brain tumors. Focused ultrasound facilitated BBB-opening can be achieved without loss of efficacy in the post-irradiated brain as early as 2 days after radiation therapy. This allows for further studies on early application of FUS-mediated BBB-opening.
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Affiliation(s)
- Shutao Wang
- Icahn School of Medicine at Mount Sinai, New York, USA.,Department of Radiation Oncology, Columbia University Medical Center, New York, USA
| | - Cheng-Chia Wu
- Department of Radiation Oncology, Columbia University Medical Center, New York, USA
| | - Hairong Zhang
- Department of Biomedical Engineering, Columbia University, New York, USA
| | | | - Yi-Fang Wang
- Department of Radiation Oncology, Columbia University Medical Center, New York, USA
| | - Yang Han
- Department of Biomedical Engineering, Columbia University, New York, USA
| | - Kunal R Chaudhary
- Department of Radiation Oncology, Columbia University Medical Center, New York, USA
| | - Cheng-Shie Wuu
- Department of Radiation Oncology, Columbia University Medical Center, New York, USA
| | - Elisa Konofagou
- Department of Biomedical Engineering, Columbia University, New York, USA
| | - Simon K Cheng
- Department of Radiation Oncology, Columbia University Medical Center, New York, USA
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6
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Ye LF, Chaudhary KR, Zandkarimi F, Harken AD, Kinslow CJ, Upadhyayula PS, Dovas A, Higgins DM, Tan H, Zhang Y, Buonanno M, Wang TJC, Hei TK, Bruce JN, Canoll PD, Cheng SK, Stockwell BR. Radiation-Induced Lipid Peroxidation Triggers Ferroptosis and Synergizes with Ferroptosis Inducers. ACS Chem Biol 2020; 15:469-484. [PMID: 31899616 PMCID: PMC7180072 DOI: 10.1021/acschembio.9b00939] [Citation(s) in RCA: 278] [Impact Index Per Article: 69.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although radiation is widely used to treat cancers, resistance mechanisms often develop and involve activation of DNA repair and inhibition of apoptosis. Therefore, compounds that sensitize cancer cells to radiation via alternative cell death pathways are valuable. We report here that ferroptosis, a form of nonapoptotic cell death driven by lipid peroxidation, is partly responsible for radiation-induced cancer cell death. Moreover, we found that small molecules activating ferroptosis through system xc- inhibition or GPX4 inhibition synergize with radiation to induce ferroptosis in several cancer types by enhancing cytoplasmic lipid peroxidation but not increasing DNA damage or caspase activation. Ferroptosis inducers synergized with cytoplasmic irradiation, but not nuclear irradiation. Finally, administration of ferroptosis inducers enhanced the antitumor effect of radiation in a murine xenograft model and in human patient-derived models of lung adenocarcinoma and glioma. These results suggest that ferroptosis inducers may be effective radiosensitizers that can expand the efficacy and range of indications for radiation therapy.
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Affiliation(s)
- Ling F. Ye
- Department of Biological Sciences, Columbia University, New
York, NY 10027, USA
| | - Kunal R. Chaudhary
- Department of Radiation Oncology, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
| | | | - Andrew D. Harken
- Radiological Research Accelerator Facility, Center for
Radiological Research, Columbia University, Irvington, NY 10533, USA
| | - Connor J. Kinslow
- Department of Radiation Oncology, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
| | - Pavan S. Upadhyayula
- Department of Neurological Surgery, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
| | - Athanassios Dovas
- Departments of Pathology and Cell Biology, Vagelos College
of Physicians and Surgeons, Columbia University Irving Medical Center, 1130 St.
Nicholas Ave Rm.1001, New York, NY, 10032, USA
| | - Dominique M. Higgins
- Department of Neurological Surgery, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
| | - Hui Tan
- Department of Biological Sciences, Columbia University, New
York, NY 10027, USA
| | - Yan Zhang
- Department of Biological Sciences, Columbia University, New
York, NY 10027, USA
| | - Manuela Buonanno
- Radiological Research Accelerator Facility, Center for
Radiological Research, Columbia University, Irvington, NY 10533, USA
| | - Tony J. C. Wang
- Department of Radiation Oncology, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia
University Irving Medical Center, New York, NY 10032, USA
| | - Tom K. Hei
- Department of Radiation Oncology, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia
University Irving Medical Center, New York, NY 10032, USA
| | - Jeffrey N. Bruce
- Department of Neurological Surgery, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
| | - Peter D. Canoll
- Departments of Pathology and Cell Biology, Vagelos College
of Physicians and Surgeons, Columbia University Irving Medical Center, 1130 St.
Nicholas Ave Rm.1001, New York, NY, 10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia
University Irving Medical Center, New York, NY 10032, USA
| | - Simon K. Cheng
- Department of Radiation Oncology, Vagelos College of
Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY
10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia
University Irving Medical Center, New York, NY 10032, USA
| | - Brent R. Stockwell
- Department of Biological Sciences, Columbia University, New
York, NY 10027, USA
- Herbert Irving Comprehensive Cancer Center, Columbia
University Irving Medical Center, New York, NY 10032, USA
- Department of Chemistry, Columbia University, New York, NY
10027, USA
- Lead contact
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Broustas CG, Duval AJ, Chaudhary KR, Friedman RA, Virk RK, Lieberman HB. Targeting MEK5 impairs nonhomologous end-joining repair and sensitizes prostate cancer to DNA damaging agents. Oncogene 2020; 39:2467-2477. [PMID: 31980741 PMCID: PMC7085449 DOI: 10.1038/s41388-020-1163-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 12/13/2019] [Accepted: 01/15/2020] [Indexed: 12/23/2022]
Abstract
Radiotherapy is commonly used to treat a variety of solid human tumors, including localized prostate cancer. However, treatment failure often ensues due to tumor intrinsic or acquired radioresistance. Here we find that the MEK5/ERK5 signaling pathway is associated with resistance to genotoxic stress in aggressive prostate cancer cells. MEK5 knockdown by RNA interference sensitizes prostate cancer cells to ionizing radiation (IR) and etoposide treatment, as assessed by clonogenic survival and short-term proliferation assays. Mechanistically, MEK5 downregulation impairs phosphorylation of the catalytic subunit of DNA-PK at serine 2056 in response to IR or etoposide treatment. Although MEK5 knockdown does not influence the initial appearance of radiation- and etoposide-induced γH2AX and 53BP1 foci, it markedly delays their resolution, indicating a DNA repair defect. A cell-based assay shows that non-homologous end joining (NHEJ) is compromised in cells with ablated MEK5 protein expression. Finally, MEK5 silencing combined with focal irradiation causes strong inhibition of tumor growth in mouse xenografts, compared with MEK5 depletion or radiation alone. These findings reveal a convergence between MEK5 signaling and DNA repair by NHEJ in conferring resistance to genotoxic stress in advanced prostate cancer and suggest targeting MEK5 as an effective therapeutic intervention in the management of this disease.
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Affiliation(s)
- Constantinos G Broustas
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA.
| | - Axel J Duval
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Kunal R Chaudhary
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Richard A Friedman
- Biomedical Informatics Shared Resource, Herbert Irving Comprehensive Cancer Center and Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, USA
| | - Renu K Virk
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Howard B Lieberman
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA.,Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
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8
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Esplen N, Therriault-Proulx F, Beaulieu L, Bazalova-Carter M. Preclinical dose verification using a 3D printed mouse phantom for radiobiology experiments. Med Phys 2019; 46:5294-5303. [PMID: 31461781 DOI: 10.1002/mp.13790] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 08/16/2019] [Accepted: 08/16/2019] [Indexed: 01/14/2023] Open
Abstract
PURPOSE Dose verification in preclinical radiotherapy is often challenged by a lack of standardization in the techniques and technologies commonly employed along with the inherent difficulty of dosimetry associated with small-field kilovoltage sources. As a consequence, the accuracy of dosimetry in radiobiological research has been called into question. Fortunately, the development and characterization of realistic small-animal phantoms has emerged as an effective and accessible means of improving dosimetric accuracy and precision in this context. The application of three-dimensional (3D) printing, in particular, has enabled substantial improvements in the conformity of representative phantoms with respect to the small animals they are modeled after. In this study, our goal was to evaluate a fully 3D printed mouse phantom for use in preclinical treatment verification of sophisticated therapies for various anatomical targets of therapeutic interest. METHODS An anatomically realistic mouse phantom was 3D printed based on segmented microCT data of a tumor-bearing mouse. The phantom was modified to accommodate both laser-cut EBT3 radiochromic film within the mouse thorax and a plastic scintillator dosimeter (PSD), which may be placed within the brain, abdomen, or 1-cm flank subcutaneous tumor. Various treatments were delivered on an image-guided small-animal irradiator in order to determine the doses to isocenter using a PSD and validate lateral- and depth-dose distributions using film dosimeters. On-board cone-beam CT imaging was used to localize isocenter to the film plane or PSD active element prior to irradiation. The PSD irradiations comprised a 3 × 3 mm2 brain arc, 5 × 5 mm2 parallel-opposed pair (POP), and 5-beam 10 × 10 mm2 abdominal coplanar arrangement while two-dimensional (2D) film dose distributions were acquired using a 3 × 3 mm2 arc and both 5 × 5 and 10 × 10 mm2 3-beam coplanar plans. A validated Monte Carlo (MC) model of the source was used as to verify the accuracy of the film and PSD dose measurements. computer-aided design (CAD) geometries for the mouse phantom and dosimeters were imported directly into the MC code to allow for highly accurate reproduction of the physical experiment conditions. Experimental and MC-derived film data were co-registered and film dose profiles were compared for points above 90% of the dose maximum. Point dose measurements obtained with the PSD were similarly compared for each of the candidate (brain, abdomen, and tumor) treatment sites. RESULTS For each treatment configuration and anatomical target, the MC-calculated and measured doses met the proposed 5% agreement goal for dose accuracy in radiobiology experiments. The 2D film and MC dose distributions were successfully registered and mean doses for lateral profiles were found to agree to within 2.3% in all cases. Isocentric point-dose measurements taken with the PSD were similarly consistent, with a maximum percentage deviation of 3.2%. CONCLUSIONS Our study confirms the utility of 3D printed phantom design in providing accurate dose estimates for a variety of preclinical treatment paradigms. As a tool for pretreatment dose verification, the phantom may be of particular interest to researchers for its ability to facilitate precise dosimetry while fostering a reduction in cost for radiobiology experiments.
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Affiliation(s)
- Nolan Esplen
- Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 5C2, Canada
| | - François Therriault-Proulx
- Departement de Radio-Oncologie and Centre de recherche du CHU de Quebec, CHU de Quebec, Quebec, QC, G1R 3S1, Canada
| | - Luc Beaulieu
- Departement de Radio-Oncologie and Centre de recherche du CHU de Quebec, CHU de Quebec, Quebec, QC, G1R 3S1, Canada.,Departement de physique and Centre de recherche sur le Cancer, Université Laval, Quebec, QC, G1V 0A6, Canada
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9
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Esplen N, Alyaqoub E, Bazalova-Carter M. Technical Note: Manufacturing of a realistic mouse phantom for dosimetry of radiobiology experiments. Med Phys 2018; 46:1030-1036. [PMID: 30488962 DOI: 10.1002/mp.13310] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 11/14/2018] [Accepted: 11/20/2018] [Indexed: 12/15/2022] Open
Abstract
PURPOSE The goal of this work was to design a realistic mouse phantom as a useful tool for accurate dosimetry in radiobiology experiments. METHODS A subcutaneous tumor-bearing mouse was scanned in a microCT scanner, its organs manually segmented and contoured. The resulting geometries were converted into a stereolithographic file format (STL) and sent to a multimaterial 3D printer. The phantom was split into two parts to allow for lung excavation and 3D-printed with an acrylic-like material and consisted of the main body (mass density ρ=1.18 g/cm3 ) and bone (ρ=1.20 g/cm3 ). The excavated lungs were filled with polystyrene (ρ=0.32 g/cm3 ). Three cavities were excavated to allow the placement of a 1-mm diameter plastic scintillator dosimeter (PSD) in the brain, the center of the body and a subcutaneous tumor. Additionally, a laser-cut Gafchromic film can be placed in between the two phantom parts for 2D dosimetric evaluation. The expected differences in dose deposition between mouse tissues and the mouse phantom for a 220-kVp beam delivered by the small animal radiation research platform (SARRP) were calculated by Monte Carlo (MC). RESULTS MicroCT scans of the phantom showed excellent material uniformity and confirmed the material densities given by the manufacturer. MC dose calculations revealed that the dose measured by tissue-equivalent dosimeters inserted into the phantom in the brain, abdomen, and subcutaneous tumor would be underestimated by 3-5%, which is deemed to be an acceptable error assuming the proposed 5% accuracy of radiobiological experiments. CONCLUSIONS The low-cost mouse phantom can be easily manufactured and, after a careful dosimetric characterization, may serve as a useful tool for dose verification in a range of radiobiology experiments.
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Affiliation(s)
- Nolan Esplen
- Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
| | - Eisa Alyaqoub
- Department of Electrical Engineering, University of Victoria, Victoria, BC, Canada
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Dos Santos M, Kereselidze D, Gloaguen C, Benadjaoud MA, Tack K, Lestaevel P, Durand C. Development of whole brain versus targeted dentate gyrus irradiation model to explain low to moderate doses of exposure effects in mice. Sci Rep 2018; 8:17262. [PMID: 30467388 PMCID: PMC6250717 DOI: 10.1038/s41598-018-35579-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 10/16/2018] [Indexed: 12/23/2022] Open
Abstract
Evaluation of the consequences of low to moderate doses of ionizing radiation (IR) remains a societal challenge, especially for children exposed to CT scans. Appropriate experimental models are needed to improve scientific understanding of how exposure of the postnatal brain to IR affects behavioral functions and their related pathophysiological mechanisms, considering brain complex functional organization. In the brain, the dorsal and ventral hippocampal dentate gyrus can be involved in distinct major behavioral functions. To study the long term behavioral effects of brain exposure at low to moderate doses of IR (doses range 0.25–1 Gy), we developed three new experimental models in 10-day-old mice: a model of brain irradiation and two targeted irradiation models of the dorsal and ventral dentate gyrus. We used the technological properties of the SARRP coupled with MR imaging. Our irradiation strategy has been twofold endorsed. The millimetric ballistic specificity of our models was first validated by measuring gamma-H2AX increase after irradiation. We then demonstrated higher anxiety/depressive-like behavior, preferentially mediate by the ventral part of the dentate gyrus, in mice after brain and ventral dentate gyrus IR exposure. This work provides new tools to enhance scientific understanding of how to protect children exposed to IR.
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Affiliation(s)
- M Dos Santos
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department of RAdiobiology and regenerative MEDicine (SERAMED), Laboratory of Radiobiology of Accidental exposures (LRAcc), Fontenay-aux-Roses, France
| | - D Kereselidze
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department on the Biological and Health Effects of Ionizing Radiation (SESANE), Laboratory of experimental Radiotoxicology and Radiobiology (LRTOX), Fontenay aux Roses, France
| | - C Gloaguen
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department on the Biological and Health Effects of Ionizing Radiation (SESANE), Laboratory of experimental Radiotoxicology and Radiobiology (LRTOX), Fontenay aux Roses, France
| | - M A Benadjaoud
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department of RAdiobiology and regenerative MEDicine (SERAMED), Fontenay-aux-Roses, France
| | - K Tack
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department on the Biological and Health Effects of Ionizing Radiation (SESANE), Laboratory of experimental Radiotoxicology and Radiobiology (LRTOX), Fontenay aux Roses, France
| | - P Lestaevel
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department on the Biological and Health Effects of Ionizing Radiation (SESANE), Laboratory of experimental Radiotoxicology and Radiobiology (LRTOX), Fontenay aux Roses, France
| | - C Durand
- Institute for Radiological Protection and Nuclear Safety (IRSN), Research department on the Biological and Health Effects of Ionizing Radiation (SESANE), Laboratory of experimental Radiotoxicology and Radiobiology (LRTOX), Fontenay aux Roses, France.
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Black PJ, Smith DR, Chaudhary K, Xanthopoulos EP, Chin C, Spina CS, Hwang ME, Mayeda M, Wang YF, Connolly EP, Wang TJC, Wuu CS, Hei TK, Cheng SK, Wu CC. Velocity-based Adaptive Registration and Fusion for Fractionated Stereotactic Radiosurgery Using the Small Animal Radiation Research Platform. Int J Radiat Oncol Biol Phys 2018; 102:841-847. [PMID: 29891199 DOI: 10.1016/j.ijrobp.2018.04.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 04/18/2018] [Accepted: 04/23/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE To implement Velocity-based image fusion and adaptive deformable registration to enable treatment planning for preclinical murine models of fractionated stereotactic radiosurgery (fSRS) using the small animal radiation research platform (SARRP). METHODS AND MATERIALS C57BL6 mice underwent 3 unique cone beam computed tomography (CBCT) scans: 2 in the prone position and a third supine. A single T1-weighted post-contrast magnetic resonance imaging (MRI) series of a murine metastatic brain tumor model was selected for MRI-to-CBCT registration and gross tumor volume (GTV) identification. Two arms were compared: Arm 1, where we performed 3 individual MRI-to-CBCT fusions using rigid registration, contouring GTVs on each, and Arm 2, where the authors performed MRI-to-CBCT fusion and contoured GTV on the first CBCT followed by Velocity-based adaptive registration. The first CBCT and associated GTV were exported from MuriPlan (Xstrahl Life Sciences) into Velocity (Varian Medical Systems, Inc, Palo Alto, CA). In Arm 1, the second and third CBCTs were exported similarly along with associated GTVs (Arm 1), while in Arm 2, the first (prone) CBCT was fused separately to the second (prone) and third (supine) CBCTs, performing deformable registrations on initial CBCTs and applying resulting matrices to the contoured GTV. Resulting GTVs were compared between Arms 1 and 2. RESULTS Comparing GTV overlays using repeated MRI fusion and GTV delineation (Arm 1) versus those of Velocity-based CBCT and GTV adaptive fusion (Arm 2), mean deviations ± standard deviation in the axial, sagittal, and coronal planes were 0.46 ± 0.16, 0.46 ± 0.22, and 0.37 ± 0.22 mm for prone-to-prone and 0.52 ± 0.27, 0.52 ± 0.36, and 0.68 ± 0.31 mm for prone-to-supine adaptive fusions, respectively. CONCLUSIONS Velocity-based adaptive fusion of CBCTs and contoured volumes allows for efficient fSRS planning using a single MRI-to-CBCT fusion. This technique is immediately implementable on current SARRP systems, facilitating advanced preclinical treatment paradigms using existing clinical treatment planning software.
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Affiliation(s)
- Paul J Black
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Deborah R Smith
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Kunal Chaudhary
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Eric P Xanthopoulos
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Christine Chin
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Catherine S Spina
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Mark E Hwang
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Mark Mayeda
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Yi-Fang Wang
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Eileen P Connolly
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Tony J C Wang
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York; Department of Neurological Surgery, Columbia University Medical Center, New York, New York; Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
| | - Cheng-Shie Wuu
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York
| | - Tom K Hei
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York; Center for Radiological Research, Columbia University, New York, New York
| | - Simon K Cheng
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York.
| | - Cheng-Chia Wu
- Department of Radiation Oncology, Columbia University Medical Center, New York, New York.
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