Related Experiment Video
Updated: Nov 25, 2025
Generation of Zebrafish Larval Xenografts and Tumor Behavior Analysis
Published on: June 19, 2021
Using Zebrafish Larvae as a Xenotransplantation Model to Study Ewing Sarcoma
Susana Pascoal1, Sarah Grissenberger1, Eva Scheuringer1
1Innovative Cancer Models, St. Anna Children's Cancer Research Institute, Vienna, Austria.
Abstract:
Tumor models allowing for the in vivo investigation of molecular mechanisms driving tumor progression and metastasis are important to develop novel strategies for cancer treatment. Unfortunately, for Ewing sarcoma no adequate genetic animal models are currently available. Mouse xenograft models are the state of the art to model Ewing sarcoma in vivo. Here, we describe an alternative Ewing sarcoma xenograft model in embryonic and larval zebrafish. This xenograft model offers live imaging and easy compound testing opportunities hereby complementing mouse xenograft models. In this chapter, we provide a detailed protocol how to xenograft Ewing sarcoma cells (shSK-E17T) into 2-day-old zebrafish and how xenografted zebrafish can be imaged and analyzed over consecutive days to study tumor proliferation.
Insights
Researchers developed a new zebrafish xenograft model for studying Ewing sarcoma tumor progression. This model allows for live imaging and compound testing, complementing existing mouse models for cancer research.
Area of Science:
- Development of novel cancer models for in vivo research.
- Zebrafish as a model organism in oncology and metastasis studies.
Background:
- Investigating molecular mechanisms of tumor progression and metastasis is crucial for developing new cancer treatments.
- Current limitations in available genetic animal models for Ewing sarcoma hinder comprehensive in vivo studies.
- Mouse xenograft models are the current standard for in vivo Ewing sarcoma research.
Purpose of the Study:
- To establish and validate an alternative in vivo xenograft model for Ewing sarcoma using zebrafish.
- To provide a detailed protocol for creating and analyzing Ewing sarcoma xenografts in zebrafish.
- To highlight the advantages of the zebrafish model for live imaging and compound screening.
Main Methods:
- Xenografting of Ewing sarcoma cell line (shSK-E17T) into 2-day-old zebrafish embryos.
- Live imaging of xenografted zebrafish over consecutive days to monitor tumor growth.
- Analysis of tumor proliferation and progression in the zebrafish model.
Main Results:
- Successful establishment of an Ewing sarcoma xenograft model in embryonic and larval zebrafish.
- Demonstration of live imaging capabilities for real-time observation of tumor development.
- Validation of the model's utility for studying tumor proliferation.
Conclusions:
- The zebrafish xenograft model offers a valuable alternative for in vivo Ewing sarcoma research.
- This model provides unique opportunities for live imaging and high-throughput compound testing.
- The developed protocol facilitates the study of Ewing sarcoma progression and potential therapeutic strategies.
