Patient-derived organoids across cancers reveal conserved tumor heterogeneity and actionable therapeutic

Hui-Hsuan Kuo1, Bhavneet Bhinder1,2, Hamza N Gokozan3

  • 1Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY 10021, USA.

Science Advances
|June 26, 2026
PubMed

Insights

A new pan-cancer patient-derived organoid (PDO) platform accurately models tumors for drug screening. This functional precision oncology approach identifies novel targeted therapies and predicts drug sensitivity, advancing personalized cancer treatment.

Area of Science:

  • Oncology
  • Genomics
  • Drug Discovery

Background:

  • Patient-derived organoids (PDOs) are valuable models for cancer research.
  • A need exists for robust, high-fidelity PDO platforms for comprehensive drug screening.
  • Functional precision oncology requires reliable models that reflect tumor heterogeneity and genomic alterations.

Purpose of the Study:

  • To develop and characterize a large-scale, pan-cancer patient-derived organoid platform.
  • To assess the fidelity of PDOs to parent tumors at histopathological, genomic, and transcriptomic levels.
  • To evaluate the utility of the PDO platform for drug sensitivity testing and identifying novel therapeutic strategies.

Main Methods:

  • Development of a platform comprising 220 PDOs from 191 patients across 15 cancer types.
  • Comprehensive characterization including histopathology, genomic sequencing, and gene expression profiling.
  • Functional drug screening assays, including sensitivity testing to talazoparib and combination screens.

Main Results:

  • High fidelity of PDOs to parent tumors: 93% histopathology concordance, 80% median genomic concordance, 0.85 median gene expression correlation.
  • Stable expression profiles over 10 passages and preservation of dominant tumor clones (85%).
  • Identification of talazoparib sensitivity in 58% of eligible PDOs and discovery of agents overcoming resistance in TP53-mutant models.

Conclusions:

  • The established pan-cancer PDO platform offers high fidelity and reproducibility for functional precision oncology.
  • The platform facilitates the investigation of targeted therapies and drug resistance mechanisms.
  • This model provides translational insights for personalized cancer treatment beyond current biomarker guidelines.

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