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Updated: Jan 28, 2026

High-Throughput In Vitro Assay using Patient-Derived Tumor Organoids
Published on: June 14, 2021
A simple high-throughput approach identifies actionable drug sensitivities in patient-derived tumor organoids
Nhan Phan1,2, Jenny J Hong1, Bobby Tofig3
1Division of Hematology-Oncology, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA.
Abstract:
Tumor organoids maintain cell-cell interactions, heterogeneity, microenvironment, and drug response of the sample they originate from. Thus, there is increasing interest in developing tumor organoid models for drug development and personalized medicine applications. Although organoids are in principle amenable to high-throughput screenings, progress has been hampered by technical constraints and extensive manipulations required by current methods. Here we introduce a miniaturized method that uses a simplified geometry by seeding cells around the rim of the wells (mini-rings). This allows high-throughput screenings in a format compatible with automation as shown using four patient-derived tumor organoids established from two ovarian and one peritoneal high-grade serous carcinomas and one carcinosarcoma of the ovary. Using our automated screening platform, we identified personalized responses by measuring viability, number, and size of organoids after exposure to 240 kinase inhibitors. Results are available within a week from surgery, a timeline compatible with therapeutic decision-making.
Insights
We developed a miniaturized, automated method for high-throughput screening of tumor organoids. This approach enables rapid identification of personalized drug responses for ovarian cancer patients within a week of surgery.
Area of Science:
- Oncology
- Biotechnology
- Drug Discovery
Background:
- Tumor organoids replicate patient-specific tumor characteristics, including heterogeneity and drug response.
- Organoid models are promising for drug development and personalized medicine but face technical hurdles for high-throughput screening.
- Current methods require extensive manipulation, limiting their application in rapid clinical decision-making.
Purpose of the Study:
- To develop a miniaturized, automated, high-throughput screening method for patient-derived tumor organoids.
- To enable rapid assessment of drug efficacy in ovarian cancer models.
- To facilitate timely therapeutic decision-making for cancer patients.
Main Methods:
- A novel miniaturized method using a simplified 'mini-ring' geometry for seeding cells.
- Automation of high-throughput screening using patient-derived tumor organoids (ovarian, peritoneal).
- Assessment of organoid viability, number, and size after exposure to 240 kinase inhibitors.
Main Results:
- Demonstrated a miniaturized, automated platform compatible with high-throughput screening of tumor organoids.
- Successfully identified personalized drug responses in four patient-derived ovarian cancer organoid models.
- Obtained results within one week from sample collection, a clinically relevant timeframe.
Conclusions:
- The developed method overcomes technical limitations of current organoid screening techniques.
- This automated platform facilitates rapid, personalized drug response profiling for ovarian cancer.
- The approach supports timely therapeutic strategy adjustments in clinical oncology.
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