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Establishing 3-Dimensional Spheroids from Patient-Derived Tumor Samples and Evaluating their Sensitivity to Drugs
Published on: December 16, 2022
PDMS well platform for culturing millimeter-size tumor spheroids
Sithira H Ratnayaka1, Taylor E Hillburn, Omid Forouzan
1Dept. of Biomedical Engineering, Tulane University, New Orleans, LA, 70118.
Biotechnology Progress
|July 9, 2013
Summary
Researchers developed a new method to grow large multicellular tumor spheroids for drug testing. This advancement enables more accurate preclinical studies for tumor ablation therapies, improving cancer drug development.
Area of Science:
- Oncology
- Biotechnology
- Drug Discovery
Background:
- Multicellular tumor spheroids are valuable in vitro models for anticancer drug efficacy testing.
- Existing methods for spheroid culture yield small models, limiting their utility for preclinical studies of tumor ablation.
- Large tumor models are needed to accurately simulate in vivo conditions for complete tumor destruction assessment.
Purpose of the Study:
- To develop an improved method for culturing large multicellular tumor spheroids.
- To enable preclinical evaluation of tumor ablation strategies using scaled-up in vitro models.
Main Methods:
- A polydimethylsiloxane (PDMS) well method was developed for large tumor spheroid culture.
- HepG2 hepatic cancer cells were initially cultured using the hanging drop method.
- Subsequent culture was performed in cylindrical PDMS wells to promote spheroid growth.
Main Results:
- The PDMS well method successfully facilitated the growth of large tumor spheroids.
- Tumor spheroids with volumes up to 44 mm³ were achieved, a 350-fold increase over hanging drop methods.
- This method overcomes the limitations of submillimeter-sized spheroids in preclinical research.
Conclusions:
- The proposed PDMS well method enables the scalable culture of large multicellular tumor spheroids.
- This technique provides a more relevant in vitro model for preclinical assessment of tumor ablation therapies.
- The advancement supports more effective and safer anticancer drug development.
