The Promise of Patient-Derived Xenografts: The Best Laid Plans of Mice and Men

Abstract
Compared with xenografts from previously established cell lines, patient-derived xenografts may more faithfully recapitulate the molecular diversity, cellular heterogeneity, and histology seen in patient tumors, although other limitations of murine models remain. The ability of these models to inform clinical development and answer mechanistic questions will determine their ultimate use. Clin Cancer Res; 18(19); 5160–2. ©2012 AACR.