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Transplantation of Zebrafish Pediatric Brain Tumors into Immune-competent Hosts for Long-term Study of Tumor Cell Behavior and Drug Response
Published on: May 17, 2017
Preclinical Models of Pediatric Brain Tumors-Forging Ahead
Tara H W Dobson1, Vidya Gopalakrishnan2,3,4,5,6
1Department of Pediatrics, University of Texas, M.D. Anderson Cancer Center, Houston, TX 77030, USA. thdobson@mdanderson.org.
Abstract:
Approximately five out of 100,000 children from 0 to 19 years old are diagnosed with a brain tumor. These children are treated with medication designed for adults that are highly toxic to a developing brain. Those that survive are at high risk for a lifetime of limited physical, psychological, and cognitive abilities. Despite much effort, not one drug exists that was designed specifically for pediatric patients. Stagnant government funding and the lack of economic incentives for the pharmaceutical industry greatly limits preclinical research and the development of clinically applicable pediatric brain tumor models. As more data are collected, the recognition of disease sub-groups based on molecular heterogeneity increases the need for designing specific models suitable for predictive drug screening. To overcome these challenges, preclinical approaches will need continual enhancement. In this review, we examine the advantages and shortcomings of in vitro and in vivo preclinical pediatric brain tumor models and explore potential solutions based on past, present, and future strategies for improving their clinical relevancy.
Insights
Pediatric brain tumor research faces challenges due to a lack of specific drugs and effective preclinical models. This review examines current models and proposes strategies to improve their clinical relevance for better treatment outcomes.
Area of Science:
- Pediatric Oncology
- Translational Research
- Drug Development
Background:
- Pediatric brain tumors are rare, affecting ~5 in 100,000 children.
- Current treatments use adult medications, causing severe toxicity and long-term deficits.
- No drugs are specifically designed for pediatric brain tumors, highlighting a critical unmet need.
Purpose of the Study:
- To review the limitations of current in vitro and in vivo preclinical pediatric brain tumor models.
- To explore strategies for enhancing the clinical relevance of these models.
- To address the need for improved drug screening and development for pediatric brain tumors.
Main Methods:
- Review of existing literature on preclinical pediatric brain tumor models.
- Analysis of advantages and disadvantages of in vitro and in vivo models.
- Exploration of past, present, and future strategies for model improvement.
Main Results:
- Current preclinical models have significant shortcomings in accurately reflecting pediatric brain tumor biology.
- Lack of funding and economic incentives hinder the development of novel, clinically relevant models.
- Molecular heterogeneity necessitates the design of specific models for accurate drug screening.
Conclusions:
- Enhancing preclinical models is crucial for advancing pediatric brain tumor treatment.
- Innovative approaches are needed to overcome current research and development barriers.
- Improved models will facilitate the development of targeted therapies for pediatric brain tumors.
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