Protocol for drug screening of patient-derived tumor organoids using high-content fluorescent imaging

Brian M Larsen1, Andrea Cancino1, Jenna M Shaxted1

  • 1Tempus Labs, Inc, Chicago, IL 60654, USA.

STAR Protocols
|May 27, 2022
PubMed

Insights

This study presents a high-content imaging method for analyzing tumor organoids (TOs) treated with drugs. This approach offers detailed cell viability data, revealing heterogeneous responses to therapeutic agents with high reproducibility.

Area of Science:

  • Oncology
  • Cell Biology
  • Drug Discovery

Background:

  • Traditional methods for assessing tumor organoids (TOs) often yield single data points per sample.
  • Tumor organoids (TOs) are valuable models for studying cancer biology and drug responses.
  • Understanding heterogeneous responses of TOs to therapeutic agents is crucial for personalized medicine.

Purpose of the Study:

  • To introduce a high-content imaging protocol for detailed analysis of tumor organoids (TOs).
  • To enable the assessment of heterogeneous cell viability in TOs upon drug treatment.
  • To provide a reproducible method for drug testing using fluorescent viability indicators.

Main Methods:

  • Utilizing high-content imaging with inverted microscopy and an automated stage.
  • Employing fluorescent indicators to assess cell viability within TOs.
  • Developing a protocol for culturing and drug testing of TOs.

Main Results:

  • The protocol provides detailed, organoid-level cell viability readouts.
  • It captures heterogeneous responses of TOs to various therapeutic agents.
  • The method demonstrates high reproducibility in culturing and drug testing TOs.

Conclusions:

  • High-content imaging offers a significant advancement over traditional methods for TO analysis.
  • This technique provides critical insights into individual TO responses to drug treatments.
  • The protocol facilitates reproducible and detailed drug screening in a 3D tumor model.

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