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Engineering a Brain Cancer Chip for High-throughput Drug Screening
Yantao Fan1, Duong Thanh Nguyen1, Yasemin Akay1
1Department of Biomedical Engineering, University of Houston, 3605 Cullen Blvd, Room 2027, Houston, TX, USA.
Abstract:
Glioblastoma multiforme (GBM) is the most common and malignant of all human primary brain cancers, in which drug treatment is still one of the most effective treatments. However, existing drug discovery and development methods rely on the use of conventional two-dimensional (2D) cell cultures, which have been proven to be poor representatives of native physiology. Here, we developed a novel three-dimensional (3D) brain cancer chip composed of photo-polymerizable poly(ethylene) glycol diacrylate (PEGDA) hydrogel for drug screening. This chip can be produced after a few seconds of photolithography and requires no silicon wafer, replica molding, and plasma bonding like microfluidic devices made of poly(dimethylsiloxane) (PDMS). We then cultured glioblastoma cells (U87), which formed 3D brain cancer tissues on the chip, and used the GBM chip to perform combinatorial treatment of Pitavastatin and Irinotecan. The results indicate that this chip is capable of high-throughput GBM cancer spheroids formation, multiple-simultaneous drug administration, and a massive parallel testing of drug response. Our approach is easily reproducible, and this chip has the potential to be a powerful platform in cases such as high-throughput drug screening and prolonged drug release. The chip is also commercially promising for other clinical applications, including 3D cell culture and micro-scale tissue engineering.
Insights
Researchers developed a novel 3D brain cancer chip for drug screening. This platform enables high-throughput testing of glioblastoma treatments, improving upon traditional 2D cell cultures.
Area of Science:
- Biomedical Engineering
- Oncology
- Materials Science
Background:
- Glioblastoma multiforme (GBM) is an aggressive brain cancer.
- Conventional 2D cell cultures poorly mimic native brain tumor physiology.
- Effective drug screening is crucial for GBM treatment development.
Purpose of the Study:
- To develop a novel three-dimensional (3D) brain cancer chip for enhanced drug screening.
- To create a reproducible and scalable platform for glioblastoma research.
- To assess the efficacy of combinatorial drug treatments on a 3D GBM model.
Main Methods:
- Fabrication of a 3D brain cancer chip using photo-polymerizable poly(ethylene) glycol diacrylate (PEGDA) hydrogel.
- Culture of glioblastoma cells (U87) to form 3D brain cancer tissues (spheroids) on the chip.
- Application of combinatorial treatment with Pitavastatin and Irinotecan for drug response testing.
Main Results:
- The chip facilitates rapid, high-throughput formation of glioblastoma spheroids.
- It enables multiple simultaneous drug administrations and massive parallel drug response testing.
- The 3D chip provides a more physiologically relevant model for drug screening compared to 2D cultures.
Conclusions:
- The novel 3D brain cancer chip is a powerful, reproducible platform for high-throughput drug screening.
- This technology has potential for evaluating combinatorial therapies and prolonged drug release.
- The chip shows commercial promise for 3D cell culture and micro-scale tissue engineering applications in oncology.
