Patient-Derived Organoids Can Guide Personalized-Therapies for Patients with Advanced Breast Cancer

Ping Chen1,2,3,4, Xu Zhang1,2, Renbo Ding1,2

  • 1Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, SAR, 999078, China.

Insights

Patient-derived organoids (PDOs) offer a new way to test breast cancer treatments. This personalized approach helps predict which therapies will be most effective for patients with advanced breast cancer.

Area of Science:

  • Oncology
  • Translational Medicine
  • Biotechnology

Background:

  • Advanced breast cancer often presents aggressively, with limited effective treatment options.
  • Developing personalized therapies for refractory breast cancers remains a significant clinical challenge.

Purpose of the Study:

  • To develop and validate patient-derived organoids (PDOs) as a real-time platform for predicting tailored treatment strategies.
  • To assess the feasibility of using PDOs for refractory breast cancer treatment selection.

Main Methods:

  • Generation of PDOs from diverse breast cancer tissues, including heavily pre-treated specimens.
  • Pharmaco-phenotyping of PDOs to assess drug sensitivity, particularly to microtubule-targeting agents.
  • Correlation of PDO drug response signatures with patient outcomes and previous treatment histories.

Main Results:

  • Successful generation of PDOs from various breast cancer samples.
  • PDO drug sensitivity signatures accurately predicted improved distant relapse-free survival in patients receiving adjuvant chemotherapy.
  • PDO pharmaco-phenotyping results mirrored patients' prior treatment responses.
  • Clinical case studies showed positive patient responses when treatment was guided by PDO sensitivity predictions.

Conclusions:

  • The PDO model serves as an effective in vitro platform for evaluating patient-specific drug sensitivity.
  • PDOs can guide personalized treatment decisions for patients with advanced or terminal-stage breast cancer.
  • This approach holds promise for improving therapeutic outcomes in refractory breast cancer cases.

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