[en] Oncolytic viral-based therapies are gaining increasing attention as a promising therapeutic approach for high-grade gliomas. Converging evidence suggests the possibility of an anti-tumoral immune response that is responsible for tumor eradication, leaving room for immune activation as a synergistic treatment option2–5. In this issue, Rivera-Molina et al. report on the utility of the clinical-trial tested oncolytic Delta-24-RGD virus that is engineered to be armed with a positive activator of the tumor necrosis factor receptor superfamily synapsis: GITRL/GITR1. The authors demonstrate increased recruitment and activation of T-cells in tumors of mice treated with the armed oncolytic antivirus, dubbed Delta-24-GREAT, with associated improved survival in-vivo in comparison to mice treated with Delta-24-RGD alone. Histopathological examination demonstrated extensive necrosis within Delta-24-GREAT treated tissue. The results of this study highlight an opportunity to overcome the intrinsic lack of co-stimulatory molecules in cancer cells to trigger robust immune responses in high-grade gliomas. The complement of available T-cell activators may be exploited in future studies to achieve synergistic anti-neoplastic effects in glioblastoma with hopes of rapid translation of armed viruses into controlled clinical trials.
Disciplines :
Oncology
Author, co-author :
Nassiri, Farshad; Division of Neurosurgery, University Health Network and MacFeeters-Hamilton Neuro-Oncology Program, Princess Margaret Hospital, University of Toronto, Toronto, Canada.
Aldape, Kenneth; Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
Alhuwalia, Manmeet; Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center and Department of Hematology/Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio.
Brastianos, Priscilla; Divisions of Hematology/Oncology and Neuro-Oncology, Departments of Medicine and Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts.
Ducray, Francois; Department of Neuro-Oncology, Hospices Civils de Lyon, Lyon, France.
Galldiks, Norbert; Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne and Germany Institute of Neuroscience and Medicine (INM-3), Research Center Juelich, Juelich and Germany Center of Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne, and Duesseldorf, Germany.
Kim, Albert; Department of Neurosurgery, School of Medicine, Washington University, St. Louis, Missouri.
Lamszus, Katrin; Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Mitchell, Duane; Lillian S. Wells Department of Neurosurgery, UF Brain Tumor Immunotherapy Program, Preston A. Wells, Jr. Center for Brain Tumor Therapy, University of Florida, Gainesville, Florida.
Nabors, L Burt; Department of Neurology, University of Alabama, Birmingham, Birmingham, Alabama.
Nam, Do-Hyun; Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.
Natsume, Atsushi; Department of Neurosurgery, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan.
Ng, Ho-Keung; Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, China.
NICLOU, Simone P. ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Life Sciences and Medicine (DLSM) ; Department of Neuropathology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Sahm, Felix; NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg.
Short, Susan; Leeds Institute of Cancer and Pathology, Faculty of Medicine and Health, University of Leeds, St James's University Hospital, Leeds, West Yorkshire.
Walsh, Kyle; Duke Cancer Institute, Duke University, Durham, North Carolina.
Wick, Wolfgang; University Medical Center and German Cancer Research Center Heidelberg, Germany.
Zadeh, Gelareh; Division of Neurosurgery, University Health Network and MacFeeters-Hamilton Neuro-Oncology Program, Princess Margaret Hospital, University of Toronto, Toronto, Canada.
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