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Updated: Jan 30, 2026

A Melanoma Patient-Derived Xenograft Model
Published on: May 20, 2019
Patient-derived xenograft mouse models: A high fidelity tool for individualized medicine
Cong Xu1, Xuelu Li2, Pixu Liu3,4
1Department of Acute Abdomen Surgery, The Second Hospital of Dalian Medical University, Dalian, Liaoning 116023, P.R. China.
Abstract:
Patient-derived xenograft (PDX) mouse models involve the direct transfer of fresh human tumor samples into immunodeficient mice following surgical resection or other medical operations. Gene expression in tumors may be maintained by serial passages of tumors from mouse to mouse. These models aid research into tumor biology and pharmacology without manual manipulation of cell cultures in vitro. and are widely used in individualized cancer therapy/translational medicine, drug development and coclinical trials. PDX models exhibit higher predictive values for clinical outcomes than cell line-derived xenograft models and genetically engineered mouse models. However, PDX models are associated with certain challenges in clinical application. The present study reviewed current collections of PDX models and assessed the challenges and future directions of this field.
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