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Chen M, Zhao E, Li M, Xu M, Hao S, Gao Y, Wu X, Li X, Yu Y, Yu Z, Yin Y. Kaempferol inhibits non-homologous end joining repair via regulating Ku80 stability in glioma cancer. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 116:154876. [PMID: 37210962 DOI: 10.1016/j.phymed.2023.154876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 04/29/2023] [Accepted: 05/10/2023] [Indexed: 05/23/2023]
Abstract
BACKGROUND Targeting DNA damage response and DNA repair proficiency of cancers is an important anticancer strategy. Kaempferol (Kae), a natural flavonoid, displays potent antitumor properties in some cancers. However, the precise underlying mechanism of Kae regulates DNA repair system are poorly understood. PURPOSE We aim to evaluate the efficacy of Kae in the treatment of human glioma as well as the molecular mechanism regarding DNA repair. STUDY DESIGN Effects of Kae on glioma cells were detected using CCK-8 and EdU labeling assays. The molecular mechanism of Kae on glioma was determined using RNAseq. The inhibition effects of Kae on DNA repair were verified using Immunoprecipitation, immunofluorescence, and pimEJ5-GFP report assays. For in vivo study, orthotopic xenograft models were established and treated with Kae or vehicle. Glioma development was monitored by bioluminescence imaging, Magnetic Resonance Imaging (MRI), and brain sections Hematoxylin/Eosin (HE) staining. Immunohistochemical (IHC) analysis was used to detect expression of Ku80, Ki67 and γH2AX in engrafted glioma tissue. RESULTS We found that Kae remarkably inhibits viability of glioma cells and decreases its proliferation. Mechanistically, Kae regulates multiple functional pathways associated with cancer, including non-homologous end joining (NHEJ) repair. Further studies revealed that Kae inhibits release of Ku80 from the double-strand breaks (DSBs) sites via reducing ubiquitylation and degradation of Ku80. Therefore, Kae significantly suppresses NHEJ repair and induces accumulation of DSBs in glioma cells. Moreover, Kae displays a dramatic inhibition effects on glioma growth in an orthotopic transplantation model. These data demonstrate that Kae can induce deubiquitination of Ku80, suppress NHEJ repair and inhibit glioma growth. CONCLUSION Our findings indicate that inhibiting release of Ku80 from the DSBs by Kae may be a potential effective approach for glioma treatment.
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Affiliation(s)
- Meiyang Chen
- Laboratory of Experimental Hematology, School of Basic Medical Sciences, Binzhou Medical University, No. 346 Guanhai Road, Yantai, Shandong 264003, China
| | - Erdi Zhao
- Laboratory of Experimental Hematology, School of Basic Medical Sciences, Binzhou Medical University, No. 346 Guanhai Road, Yantai, Shandong 264003, China
| | - Minjing Li
- Institute of Integrated Medicine, Binzhou Medical University, Yantai 264003, China
| | - Ming Xu
- Laboratory of Experimental Hematology, School of Basic Medical Sciences, Binzhou Medical University, No. 346 Guanhai Road, Yantai, Shandong 264003, China
| | - Shiyu Hao
- Laboratory of Experimental Hematology, School of Basic Medical Sciences, Binzhou Medical University, No. 346 Guanhai Road, Yantai, Shandong 264003, China
| | - Yingli Gao
- Laboratory of Experimental Hematology, School of Basic Medical Sciences, Binzhou Medical University, No. 346 Guanhai Road, Yantai, Shandong 264003, China
| | - Xingli Wu
- The Second School of Clinical Medicine, Binzhou Medical University, Yantai 264003, China
| | - Xiang Li
- The Second School of Clinical Medicine, Binzhou Medical University, Yantai 264003, China
| | - Yue Yu
- The Second School of Clinical Medicine, Binzhou Medical University, Yantai 264003, China
| | - Zhenhai Yu
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai 264003, China
| | - Yancun Yin
- Laboratory of Experimental Hematology, School of Basic Medical Sciences, Binzhou Medical University, No. 346 Guanhai Road, Yantai, Shandong 264003, China.
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Mouawad R, Neamati N. Inhibition of Protein Disulfide Isomerase (PDIA1) Leads to Proteasome-Mediated Degradation of Ubiquitin-like PHD and RING Finger Domain-Containing Protein 1 (UHRF1) and Increased Sensitivity of Glioblastoma Cells to Topoisomerase II Inhibitors. ACS Pharmacol Transl Sci 2022; 6:100-114. [PMID: 36654750 PMCID: PMC9841782 DOI: 10.1021/acsptsci.2c00186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 12/12/2022]
Abstract
Glioblastoma (GBM) is the most aggressive brain tumor, and the prognosis remains poor with current available treatments. PDIA1 is considered a promising therapeutic target in GBM. In this study, we demonstrate that targeting PDIA1 results in increased GBM cell death by topoisomerase II (Top-II) inhibitors resulting in proteasome-mediated degradation of the oncogenic protein UHRF1. Combination of the PDIA1 inhibitor, bepristat-2a, produces strong synergy with doxorubicin, etoposide, and mitoxantrone in GBM and other cancer cell lines. Our bioinformatics analysis of multiple datasets revealed downregulation of UHRF1, upon PDIA1 inhibition. In addition, PDIA1 inhibition results in proteasome-mediated degradation of UHRF1 protein. Interestingly, treatment of GBM cells with bepristat-2a results in increased apoptosis and resistance to ferroptosis. Our findings emphasize the importance of PDIA1 as a therapeutic target in GBM and present a promising new therapeutic approach using Top-II inhibitors for GBM treatment.
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Blankenstein LJ, Cordes N, Kunz-Schughart LA, Vehlow A. Targeting of p21-Activated Kinase 4 Radiosensitizes Glioblastoma Cells via Impaired DNA Repair. Cells 2022; 11:cells11142133. [PMID: 35883575 PMCID: PMC9316146 DOI: 10.3390/cells11142133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 01/27/2023] Open
Abstract
Glioblastoma is a devastating malignant disease with poor patient overall survival. Strong invasiveness and resistance to radiochemotherapy have challenged the identification of molecular targets that can finally improve treatment outcomes. This study evaluates the influence of all six known p21-activated kinase (PAK) protein family members on the invasion capacity and radio-response of glioblastoma cells by employing a siRNA-based screen. In a panel of human glioblastoma cell models, we identified PAK4 as the main PAK isoform regulating invasion and clonogenic survival upon irradiation and demonstrated the radiosensitizing potential of PAK4 inhibition. Mechanistically, we show that PAK4 depletion and pharmacological inhibition enhanced the number of irradiation-induced DNA double-strand breaks and reduced the expression levels of various DNA repair proteins. In conclusion, our data suggest PAK4 as a putative target for radiosensitization and impairing DNA repair in glioblastoma, deserving further scrutiny in extended combinatorial treatment testing.
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Affiliation(s)
- Leon J. Blankenstein
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, PF 41, 01307 Dresden, Germany; (L.J.B.); (N.C.); (L.A.K.-S.)
- National Center for Tumor Diseases, Partner Site Dresden: German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Nils Cordes
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, PF 41, 01307 Dresden, Germany; (L.J.B.); (N.C.); (L.A.K.-S.)
- National Center for Tumor Diseases, Partner Site Dresden: German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Department of Radiotherapy and Radiation Oncology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, PF 50, 01307 Dresden, Germany
- Helmholtz-Zentrum Dresden—Rossendorf, Institute of Radiooncology—OncoRay, Bautzner Landstr. 400, 01328 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69192 Heidelberg, Germany
| | - Leoni A. Kunz-Schughart
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, PF 41, 01307 Dresden, Germany; (L.J.B.); (N.C.); (L.A.K.-S.)
- National Center for Tumor Diseases, Partner Site Dresden: German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Anne Vehlow
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, PF 41, 01307 Dresden, Germany; (L.J.B.); (N.C.); (L.A.K.-S.)
- National Center for Tumor Diseases, Partner Site Dresden: German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69192 Heidelberg, Germany
- Correspondence:
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The Hallmarks of Glioblastoma: Heterogeneity, Intercellular Crosstalk and Molecular Signature of Invasiveness and Progression. Biomedicines 2022; 10:biomedicines10040806. [PMID: 35453557 PMCID: PMC9031586 DOI: 10.3390/biomedicines10040806] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 03/26/2022] [Accepted: 03/29/2022] [Indexed: 02/07/2023] Open
Abstract
In 2021 the World Health Organization published the fifth and latest version of the Central Nervous System tumors classification, which incorporates and summarizes a long list of updates from the Consortium to Inform Molecular and Practical Approaches to CNS Tumor Taxonomy work. Among the adult-type diffuse gliomas, glioblastoma represents most primary brain tumors in the neuro-oncology practice of adults. Despite massive efforts in the field of neuro-oncology diagnostics to ensure a proper taxonomy, the identification of glioblastoma-tumor subtypes is not accompanied by personalized therapies, and no improvements in terms of overall survival have been achieved so far, confirming the existence of open and unresolved issues. The aim of this review is to illustrate and elucidate the state of art regarding the foremost biological and molecular mechanisms that guide the beginning and the progression of this cancer, showing the salient features of tumor hallmarks in glioblastoma. Pathophysiology processes are discussed on molecular and cellular levels, highlighting the critical overlaps that are involved into the creation of a complex tumor microenvironment. The description of glioblastoma hallmarks shows how tumoral processes can be linked together, finding their involvement within distinct areas that are engaged for cancer-malignancy establishment and maintenance. The evidence presented provides the promising view that glioblastoma represents interconnected hallmarks that may led to a better understanding of tumor pathophysiology, therefore driving the development of new therapeutic strategies and approaches.
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Rominiyi O, Collis SJ. DDRugging glioblastoma: understanding and targeting the DNA damage response to improve future therapies. Mol Oncol 2022; 16:11-41. [PMID: 34036721 PMCID: PMC8732357 DOI: 10.1002/1878-0261.13020] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/11/2021] [Accepted: 05/24/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma is the most frequently diagnosed type of primary brain tumour in adults. These aggressive tumours are characterised by inherent treatment resistance and disease progression, contributing to ~ 190 000 brain tumour-related deaths globally each year. Current therapeutic interventions consist of surgical resection followed by radiotherapy and temozolomide chemotherapy, but average survival is typically around 1 year, with < 10% of patients surviving more than 5 years. Recently, a fourth treatment modality of intermediate-frequency low-intensity electric fields [called tumour-treating fields (TTFields)] was clinically approved for glioblastoma in some countries after it was found to increase median overall survival rates by ~ 5 months in a phase III randomised clinical trial. However, beyond these treatments, attempts to establish more effective therapies have yielded little improvement in survival for patients over the last 50 years. This is in contrast to many other types of cancer and highlights glioblastoma as a recognised tumour of unmet clinical need. Previous work has revealed that glioblastomas contain stem cell-like subpopulations that exhibit heightened expression of DNA damage response (DDR) factors, contributing to therapy resistance and disease relapse. Given that radiotherapy, chemotherapy and TTFields-based therapies all impact DDR mechanisms, this Review will focus on our current knowledge of the role of the DDR in glioblastoma biology and treatment. We also discuss the potential of effective multimodal targeting of the DDR combined with standard-of-care therapies, as well as emerging therapeutic targets, in providing much-needed improvements in survival rates for patients.
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Affiliation(s)
- Ola Rominiyi
- Weston Park Cancer CentreSheffieldUK
- Department of Oncology & MetabolismThe University of Sheffield Medical SchoolUK
- Department of NeurosurgeryRoyal Hallamshire HospitalSheffield Teaching Hospitals NHS Foundation TrustUK
| | - Spencer J. Collis
- Weston Park Cancer CentreSheffieldUK
- Department of Oncology & MetabolismThe University of Sheffield Medical SchoolUK
- Sheffield Institute for Nucleic Acids (SInFoNiA)University of SheffieldUK
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Chien JCY, Badr CE, Lai CP. Multiplexed bioluminescence-mediated tracking of DNA double-strand break repairs in vitro and in vivo. Nat Protoc 2021; 16:3933-3953. [PMID: 34163064 PMCID: PMC9124064 DOI: 10.1038/s41596-021-00564-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 04/27/2021] [Indexed: 02/06/2023]
Abstract
The dynamics of DNA double-strand break (DSB) repairs including homology-directed repair and nonhomologous end joining play an important role in diseases and therapies. However, investigating DSB repair is typically a low-throughput and cross-sectional process, requiring disruption of cells and organisms for subsequent nuclease-, sequencing- or reporter-based assays. In this protocol, we provide instructions for establishing a bioluminescent repair reporter system using engineered Gaussia and Vargula luciferases for noninvasive tracking of homology-directed repair and nonhomologous end joining, respectively, induced by SceI meganuclease, SpCas9 or SpCas9 D10A nickase-mediated editing. We also describe complementation with orthogonal DSB repair assays and omics analyses to validate the reporter readouts. The bioluminescent repair reporter system provides longitudinal and rapid readout (~seconds per sample) to accurately and efficiently measure the efficacy of genome-editing tools and small-molecule modulators on DSB repair. This protocol takes ~2-4 weeks to establish, and as little as 2 h to complete the assay. The entire bioluminescent repair reporter procedure can be performed by one person with standard molecular biology expertise and equipment. However, orthogonal DNA repair assays would require a specialized facility that performs Sanger sequencing or next-generation sequencing.
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Affiliation(s)
| | - Christian E. Badr
- Department of Neurology, Massachusetts General Hospital, Boston MA, United States,Neuroscience Program, Harvard Medical School, Boston MA, United States,To whom correspondence should be addressed: Christian E. Badr, Tel: 1-617-643-3485; Fax: 1-617-724-1537; ; Charles P. Lai, Tel: 886-2-2366-8204; Fax: 886-2-2362-0200; . C.E.B and C.P.L contributed equally to this work
| | - Charles P. Lai
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan,To whom correspondence should be addressed: Christian E. Badr, Tel: 1-617-643-3485; Fax: 1-617-724-1537; ; Charles P. Lai, Tel: 886-2-2366-8204; Fax: 886-2-2362-0200; . C.E.B and C.P.L contributed equally to this work
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Lee JA, Ayat N, Sun Z, Tofilon PJ, Lu ZR, Camphausen K. Improving Radiation Response in Glioblastoma Using ECO/siRNA Nanoparticles Targeting DNA Damage Repair. Cancers (Basel) 2020; 12:cancers12113260. [PMID: 33158243 PMCID: PMC7694254 DOI: 10.3390/cancers12113260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/30/2020] [Accepted: 10/30/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Glioblastoma (GBM) is the most common form of brain cancer and among the most lethal of human cancers. Radiation therapy is a mainstay in the standard of care for GBM, killing tumor cells by creating DNA damage. Inhibiting DNA damage repair (DDR) proteins enhances radiation therapy by not allowing tumor cells to repair the DNA damage caused by radiation. The aim of our study was to investigate whether the novel nanoparticle material, ECO, could be used to deliver small interfering RNA (siRNA) to GBM tumor cells and temporarily reduce the production of DDR proteins to improve radiation therapy outcomes. SiRNAs can be designed to target an innumerable number of genes and with the right delivery vehicle can be used in a variety of disease settings. Our work provides support for the use of the novel ECO material for delivery of siRNA in GBM. Abstract Radiation therapy is a mainstay in the standard of care for glioblastoma (GBM), thus inhibiting the DNA damage response (DDR) is a major strategy to improve radiation response and therapeutic outcomes. Small interfering RNA (siRNA) therapy holds immeasurable potential for the treatment of GBM, however delivery of the siRNA payload remains the largest obstacle for clinical implementation. Here we demonstrate the effectiveness of the novel nanomaterial, ECO (1-aminoethylimino[bis(N-oleoylcysteinylaminoethyl) propionamide]), to deliver siRNA targeting DDR proteins ataxia telangiectasia mutated and DNA-dependent protein kinase (DNApk-cs) for the radiosensitzation of GBM in vitro and in vivo. ECO nanoparticles (NPs) were shown to efficiently deliver siRNA and silence target protein expression in glioma (U251) and glioma stem cell lines (NSC11, GBMJ1). Importantly, ECO NPs displayed no cytotoxicity and minimal silencing of genes in normal astrocytes. Treatment with ECO/siRNA NPs and radiation resulted in the prolonged presence of γH2AX foci, indicators of DNA damage, and increased radiosensitivity in all tumor cell lines. In vivo, intratumoral injection of ECO/siDNApk-cs NPs with radiation resulted in a significant increase in survival compared with injection of NPs alone. These data suggest the ECO nanomaterial can effectively deliver siRNA to more selectively target and radiosensitize tumor cells to improve therapeutic outcomes in GBM.
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Affiliation(s)
- Jennifer A. Lee
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (P.J.T.); (K.C.)
- Correspondence:
| | - Nadia Ayat
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44140, USA; (N.A.); (Z.S.); (Z.-R.L.)
| | - Zhanhu Sun
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44140, USA; (N.A.); (Z.S.); (Z.-R.L.)
| | - Philip J. Tofilon
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (P.J.T.); (K.C.)
| | - Zheng-Rong Lu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44140, USA; (N.A.); (Z.S.); (Z.-R.L.)
| | - Kevin Camphausen
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (P.J.T.); (K.C.)
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Wen PY, Weller M, Lee EQ, Alexander BM, Barnholtz-Sloan JS, Barthel FP, Batchelor TT, Bindra RS, Chang SM, Chiocca EA, Cloughesy TF, DeGroot JF, Galanis E, Gilbert MR, Hegi ME, Horbinski C, Huang RY, Lassman AB, Le Rhun E, Lim M, Mehta MP, Mellinghoff IK, Minniti G, Nathanson D, Platten M, Preusser M, Roth P, Sanson M, Schiff D, Short SC, Taphoorn MJB, Tonn JC, Tsang J, Verhaak RGW, von Deimling A, Wick W, Zadeh G, Reardon DA, Aldape KD, van den Bent MJ. Glioblastoma in adults: a Society for Neuro-Oncology (SNO) and European Society of Neuro-Oncology (EANO) consensus review on current management and future directions. Neuro Oncol 2020; 22:1073-1113. [PMID: 32328653 PMCID: PMC7594557 DOI: 10.1093/neuonc/noaa106] [Citation(s) in RCA: 538] [Impact Index Per Article: 134.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Glioblastomas are the most common form of malignant primary brain tumor and an important cause of morbidity and mortality. In recent years there have been important advances in understanding the molecular pathogenesis and biology of these tumors, but this has not translated into significantly improved outcomes for patients. In this consensus review from the Society for Neuro-Oncology (SNO) and the European Association of Neuro-Oncology (EANO), the current management of isocitrate dehydrogenase wildtype (IDHwt) glioblastomas will be discussed. In addition, novel therapies such as targeted molecular therapies, agents targeting DNA damage response and metabolism, immunotherapies, and viral therapies will be reviewed, as well as the current challenges and future directions for research.
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Affiliation(s)
- Patrick Y Wen
- Dana-Farber Cancer Institute, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Michael Weller
- Department of Neurology and Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Eudocia Quant Lee
- Dana-Farber Cancer Institute, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Brian M Alexander
- Dana-Farber Cancer Institute, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Jill S Barnholtz-Sloan
- Case Western Reserve University School of Medicine and University Hospitals of Cleveland, Cleveland, Ohio, USA
| | - Floris P Barthel
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut, USA
| | - Tracy T Batchelor
- Department of Neurology, Brigham and Women’s Hospital, Dana-Farber Cancer Institute and Harvard Medical School
| | - Ranjit S Bindra
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Susan M Chang
- University of California San Francisco, San Francisco, California, USA
| | - E Antonio Chiocca
- Department of Neurosurgery, Brigham and Women’s Hospital, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | - Timothy F Cloughesy
- David Geffen School of Medicine, Department of Neurology, University of California Los Angeles, Los Angeles, California, USA
| | - John F DeGroot
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Mark R Gilbert
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Monika E Hegi
- Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Craig Horbinski
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Raymond Y Huang
- Division of Neuroradiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Andrew B Lassman
- Department of Neurology and Herbert Irving Comprehensive Cancer Center, NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, New York, New York, USA
| | - Emilie Le Rhun
- University of Lille, Inserm, Neuro-oncology, General and Stereotaxic Neurosurgery service, University Hospital of Lille, Lille, France; Breast Cancer Department, Oscar Lambret Center, Lille, France and Department of Neurology & Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Michael Lim
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Ingo K Mellinghoff
- Department of Neurology and Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Giuseppe Minniti
- Radiation Oncology Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - David Nathanson
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, University of California Los Angeles, Los Angeles, California, USA
| | - Michael Platten
- Department of Neurology, Medical Faculty Mannheim, MCTN, Heidelberg University, Heidelberg, Germany
| | - Matthias Preusser
- Division of Oncology, Department of Medicine, Medical University of Vienna, Vienna, Austria
| | - Patrick Roth
- Department of Neurology and Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Marc Sanson
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière – Charles Foix, Service de Neurologie 2-Mazarin, Paris, France
| | - David Schiff
- University of Virginia School of Medicine, Division of Neuro-Oncology, Department of Neurology, University of Virginia, Charlottesville, Virginia, USA
| | - Susan C Short
- Leeds Institute of Medical Research at St James’s, University of Leeds, Leeds, UK
| | - Martin J B Taphoorn
- Department of Neurology, Medical Center Haaglanden, The Hague and Department of Neurology, Leiden University Medical Center, the Netherlands
| | | | - Jonathan Tsang
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, University of California Los Angeles, Los Angeles, California, USA
| | - Roel G W Verhaak
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut, USA
| | - Andreas von Deimling
- Neuropathology and Clinical Cooperation Unit Neuropathology, University Heidelberg and German Cancer Center, Heidelberg, Germany
| | - Wolfgang Wick
- Department of Neurology and Neuro-oncology Program, National Center for Tumor Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | - Gelareh Zadeh
- MacFeeters Hamilton Centre for Neuro-Oncology Research, Princess Margaret Cancer Centre, Toronto, Canada
| | - David A Reardon
- Dana-Farber Cancer Institute, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Kenneth D Aldape
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
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