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Screening of predicted synergistic multi-target therapies in glioblastoma identifies new treatment strategies
Abstract
Abstract Background IDH-wildtype glioblastoma (GBM) is a highly malignant primary brain tumor with a median survival of 15 months after standard of care, which highlights the need for improved therapy. Personalized combination therapy has shown to be successful in many other tumor types and could be beneficial for GBM patients. Methods We performed the largest drug combination screen to date in GBM, using a high-throughput effort where we selected 90 drug combinations for their activity onto 25 patient-derived GBM cultures. 43 drug combinations were selected for interaction analysis based on their monotherapy efficacy and were tested in a short-term (3 days) as well as long-term (18 days) assay. Synergy was assessed using dose-equivalence and multiplicative survival metrics. Results We observed a consistent synergistic interaction for 15 out of 43 drug combinations on patient-derived GBM cultures. From these combinations, 11 out of 15 drug combinations showed a longitudinal synergistic effect on GBM cultures. The highest synergies were observed in the drug combinations Lapatinib with Thapsigargin and Lapatinib with Obatoclax Mesylate, both targeting epidermal growth factor receptor and affecting the apoptosis pathway. To further elaborate on the apoptosis cascade, we investigated other, more clinically relevant, apoptosis inducers and observed a strong synergistic effect while combining Venetoclax (BCL targeting) and AZD5991 (MCL1 targeting). Conclusions Overall, we have identified via a high-throughput drug screening several new treatment strategies for GBM. Moreover, an exceptionally strong synergistic interaction was discovered between kinase targeting and apoptosis induction which is suitable for further clinical evaluation as multi-targeted combination therapy.
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Authors (15)
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Megan Houweling
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Abdul Kulsoom
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Ninke Nieuwenhuis
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Asli Küçükosmanoglu
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Rogier C Buijsman
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Peter Wesseling
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Laurine Wedekind
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David Noske
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Anna Supernat dr
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David Bailey
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Colin Watts
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Thomas Wurdinger
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Bart Westerman
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1093/noajnl/vdad073
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Neuro-Oncology Advances
no. 5,
pages 1 - 12,
ISSN: - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Houweling M., Giczewska A., Kulsoom A., Nieuwenhuis N., Küçükosmanoglu A., Pastuszak K., Buijsman R. C., Wesseling P., Wedekind L., Noske D., Supernat A., Bailey D., Watts C., Wurdinger T., Westerman B.: Screening of predicted synergistic multi-target therapies in glioblastoma identifies new treatment strategies// Neuro-Oncology Advances -,iss. 5 (2023),
- DOI:
- Digital Object Identifier (open in new tab) 10.1093/noajnl/vdad073
- Sources of funding:
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- Spoza PG
- Verified by:
- Gdańsk University of Technology
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