![[feed]](/style/images/feed-icon-14x14.png){kind=icon}
Tools
Tools
Preview |
PDF (Original Article)
- Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
9MB |
Preview |
PDF (Supplementary Data)
- Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
5MB |
| Item Type: | Article |
|---|---|
| Title: | Cannabidiol converts NF(κ)B into a tumor suppressor in glioblastoma with defined antioxidative properties |
| Creators Name: | Volmar, M.N.M., Cheng, J., Alenezi, H., Richter, S., Haug, A., Hassan, Z., Goldberg, M., Li, Y., Hou, M., Herold-Mende, C., Maire, C.L., Lamszus, K., Flüh, C., Held-Feindt, J., Gargiulo, G., Topping, G.J., Schilling, F., Saur, D., Schneider, G., Synowitz, M., Schick, J.A., Kälin, R.E. and Glass, R. |
| Abstract: | BACKGROUND: The transcription factor NF(κ)B drives neoplastic progression of many cancers including primary brain tumors (glioblastoma; GBM). Precise therapeutic modulation of NF(κ)B activity can suppress central oncogenic signalling pathways in GBM, but clinically applicable compounds to achieve this goal have remained elusive. METHODS: In a pharmacogenomics study with a panel of transgenic glioma cells we observed that NF(κ)B can be converted into a tumor suppressor by the non-psychotropic cannabinoid Cannabidiol (CBD). Subsequently, we investigated the anti-tumor effects of CBD, which is used as an anticonvulsive drug (Epidiolex) in pediatric neurology, in a larger set of human primary GBM stem-like cells (hGSC). For this study we performed pharmacological assays, gene expression profiling, biochemical and cell-biological experiments. We validated our findings using orthotopic in vivo models and bioinformatics analysis of human GBM-datasets. RESULTS: We found that CBD promotes DNA binding of the NF(κ)B subunit RELA and simultaneously prevents RELA-phosphorylation on serine-311, a key residue which permits genetic transactivation. Strikingly, sustained DNA binding by RELA lacking phospho-serine 311 was found to mediate hGSC cytotoxicity. Widespread sensitivity to CBD was observed in a cohort of hGSC defined by low levels of reactive oxygen-species (ROS), while high ROS-content in other tumors blocked CBD induced hGSC death. Consequently, ROS levels served as predictive biomarker for CBD-sensitive tumors. CONCLUSIONS: This evidence demonstrates how a clinically approved drug can convert NF(κ)B into a tumor suppressor and suggests a promising repurposing option for GBM-therapy. |
| Keywords: | NF(κ)B (Nuclear Factor kappa-Light-Chain-Enhancer of Activated B Cells), RELA (V-Rel Avian Reticuloendotheliosisviral Oncogene Homolog A; also designated p65 or NFKB3), Stem-Like GBM Cells, GBM Therapy, Preclinical Study |
| Source: | Neuro-Oncology |
| ISSN: | 1522-8517 |
| Publisher: | Oxford University Press |
| Volume: | 23 |
| Number: | 11 |
| Page Range: | 1898-1910 |
| Date: | November 2021 |
| Official Publication: | https://doi.org/10.1093/neuonc/noab095 |
| PubMed: | View item in PubMed |
Repository Staff Only: item control page
