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Kitzberger C, Shehzad K, Morath V, Spellerberg R, Ranke J, Steiger K, Kälin RE, Multhoff G, Eiber M, Schilling F, Glass R, Weber WA, Wagner E, Nelson PJ, Spitzweg C. Interleukin-6-controlled, mesenchymal stem cell-based sodium/iodide symporter gene therapy improves survival of glioblastoma-bearing mice. Mol Ther Oncolytics 2023; 30:238-253. [PMID: 37701849 PMCID: PMC10493263 DOI: 10.1016/j.omto.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 08/11/2023] [Indexed: 09/14/2023] Open
Abstract
New treatment strategies are urgently needed for glioblastoma (GBM)-a tumor resistant to standard-of-care treatment with a high risk of recurrence and extremely poor prognosis. Based on their intrinsic tumor tropism, adoptively applied mesenchymal stem cells (MSCs) can be harnessed to deliver the theranostic sodium/iodide symporter (NIS) deep into the tumor microenvironment. Interleukin-6 (IL-6) is a multifunctional, highly expressed cytokine in the GBM microenvironment including recruited MSCs. MSCs engineered to drive NIS expression in response to IL-6 promoter activation offer the possibility of a new tumor-targeted gene therapy approach of GBM. Therefore, MSCs were stably transfected with an NIS-expressing plasmid controlled by the human IL-6 promoter (IL-6-NIS-MSCs) and systemically applied in mice carrying orthotopic GBM. Enhanced radiotracer uptake by 18F-Tetrafluoroborate-PET/magnetic resonance imaging (MRI) was detected in tumors after IL-6-NIS-MSC application as compared with mice that received wild-type MSCs. Ex vivo analysis of tumors and non-target organs showed tumor-specific NIS protein expression. Subsequent 131I therapy after IL-6-NIS-MSC application resulted in significantly delayed tumor growth assessed by MRI and improved median survival up to 60% of GBM-bearing mice as compared with controls. In conclusion, the application of MSC-mediated NIS gene therapy focusing on IL-6 biology-induced NIS transgene expression represents a promising approach for GBM treatment.
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Affiliation(s)
- Carolin Kitzberger
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Khuram Shehzad
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Volker Morath
- Department of Nuclear Medicine, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Rebekka Spellerberg
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Julius Ranke
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Katja Steiger
- Institute of Pathology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Roland E. Kälin
- Neurosurgical Research, Department of Neurosurgery, LMU University Hospital, LMU Munich, Munich, Germany
- Walter Brendel Center of Experimental Medicine, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Gabriele Multhoff
- Center for Translational Cancer Research (TranslaTUM), School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Radiation Immuno-Oncology Group, Munich, Germany
- Department of Radiation Oncology, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Matthias Eiber
- Department of Nuclear Medicine, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Franz Schilling
- Department of Nuclear Medicine, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Rainer Glass
- Neurosurgical Research, Department of Neurosurgery, LMU University Hospital, LMU Munich, Munich, Germany
- Walter Brendel Center of Experimental Medicine, Faculty of Medicine, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Wolfgang A. Weber
- Department of Nuclear Medicine, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Centre for System-Based Drug Research and Centre for Nanoscience, LMU Munich, Munich, Germany
| | - Peter J. Nelson
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Christine Spitzweg
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
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