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Advancing Preclinical Biology for Ewing Sarcoma: An International Effort
Filemon S Dela Cruz1, Elizabeth A Stewart2,3, Didier Surdez4
1Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York.
Abstract:
Ewing sarcoma is an aggressive bone and soft-tissue cancer affecting adolescents and young adults. In vitro and in vivo models of Ewing sarcoma have been instrumental in advancing our understanding of Ewing sarcoma biology and essential in evaluating potential therapies, particularly for metastatic or relapsed disease for which effective treatment options remain limited. Through an international collaborative effort between the Children's Oncology Group Bone Tumor Committee and the Euro Ewing Consortium, we review the current landscape of preclinical modeling used in Ewing sarcoma research encompassing both in vitro (cell lines and tumor organoids) and in vivo (mouse and nonmammalian xenografts) model systems. We discuss factors that can influence experimental results, provide testing considerations for both in vitro and in vivo studies, and descriptions of existing preclinical data repositories. We highlight current needs in Ewing sarcoma modeling and the importance of enhanced international cooperative research and patient advocacy efforts which will be critical in expanding our resources of biologically relevant Ewing sarcoma models to enable translation of preclinical findings into effective therapeutic strategies for patients with Ewing sarcoma.
Insights
Preclinical models are crucial for advancing Ewing sarcoma (EwS) research and developing new therapies. This review details current in vitro and in vivo EwS models, highlighting needs for better treatment strategies.
Area of Science:
- Oncology
- Cancer Biology
- Translational Research
Background:
- Ewing sarcoma (EwS) is an aggressive pediatric and young adult cancer.
- Effective treatments for metastatic or relapsed EwS are limited.
- Preclinical models are vital for understanding EwS and testing therapies.
Purpose of the Study:
- To review the current landscape of in vitro and in vivo preclinical models for Ewing sarcoma research.
- To discuss factors influencing experimental results and testing considerations.
- To identify needs and promote international collaboration in EwS modeling.
Main Methods:
- Comprehensive review of in vitro (cell lines, organoids) and in vivo (mouse, non-mammalian xenografts) EwS models.
- Analysis of factors affecting experimental outcomes.
- Examination of existing preclinical data repositories.
Main Results:
- Overview of diverse EwS model systems currently employed.
- Discussion of critical considerations for experimental design and data interpretation.
- Identification of gaps and limitations in existing EwS models.
Conclusions:
- Enhanced international collaboration and patient advocacy are essential for developing more biologically relevant EwS models.
- Improved preclinical models are critical for translating research findings into effective EwS therapies.
- Addressing current needs in EwS modeling will accelerate therapeutic advancements.
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