PUBLICATION

High-content drug screening in zebrafish xenografts reveals high efficacy of dual MCL-1/BCL-XL inhibition against Ewing sarcoma

Authors
Grissenberger, S., Sturtzel, C., Wenninger-Weinzierl, A., Radic-Sarikas, B., Scheuringer, E., Bierbaumer, L., Etienne, V., Némati, F., Pascoal, S., Tötzl, M., Tomazou, E., Metzelder, M., Putz, E.M., Decaudin, D., Delattre, O., Surdez, D., Kovar, H., Halbritter, F., Distel, M.
ID
ZDB-PUB-221204-6
Date
2022
Source
Cancer letters   554: 216028 (Journal)
Registered Authors
Distel, Martin, Grissenberger, Sarah, Scheuringer, Eva, Sturtzel, Caterina, Wenninger-Weinzierl, Andrea
Keywords
Anti-apoptotic protein inhibitors, Ewing sarcoma, High-content imaging, Phenotypic drug screening, Zebrafish xenografts
MeSH Terms
  • Animals
  • Apoptosis
  • Cell Line, Tumor
  • Drug Evaluation, Preclinical
  • Heterografts
  • Humans
  • Mice
  • Myeloid Cell Leukemia Sequence 1 Protein/genetics
  • Myeloid Cell Leukemia Sequence 1 Protein/metabolism
  • Sarcoma, Ewing*/drug therapy
  • Sarcoma, Ewing*/genetics
  • Sarcoma, Ewing*/metabolism
  • Zebrafish/metabolism
  • bcl-X Protein/genetics
  • bcl-X Protein/metabolism
PubMed
36462556 Full text @ Cancer Lett.
Abstract
Ewing sarcoma is a pediatric bone and soft tissue cancer with an urgent need for new therapies to improve disease outcome. To identify effective drugs, phenotypic drug screening has proven to be a powerful method, but achievable throughput in mouse xenografts, the preclinical Ewing sarcoma standard model, is limited. Here, we explored the use of xenografts in zebrafish for high-throughput drug screening to discover new combination therapies for Ewing sarcoma. We subjected xenografts in zebrafish larvae to high-content imaging and subsequent automated tumor size analysis to screen single agents and compound combinations. We identified three drug combinations effective against Ewing sarcoma cells: Irinotecan combined with either an MCL-1 or an BCL-XL inhibitor and in particular dual inhibition of the anti-apoptotic proteins MCL-1 and BCL-XL, which efficiently eradicated tumor cells in zebrafish xenografts. We confirmed enhanced efficacy of dual MCL-1/BCL-XL inhibition compared to single agents in a mouse PDX model. In conclusion, high-content screening of small compounds on Ewing sarcoma zebrafish xenografts identified dual MCL-1/BCL-XL targeting as a specific vulnerability and promising therapeutic strategy for Ewing sarcoma, which warrants further investigation towards clinical application.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping