Improvement of preclinical models is critical for ensuring effective treatment discovery for colorectal cancer. Here, the authors develop a platform of 128 PDX models from metastatic colorectal cancer with matched tumouroid cultures, and use these to demonstrate molecular concordance between PDX-tumouroid pairs, cetuximab sensitivity heterogeneity, and adaptive upregulation of druggable targets under cetuximab pressure.
- Simonetta M. Leto
- Elena Grassi
- Livio Trusolino
