MMP14 and chondrosarcoma: Anovel mouse model of dedifferentiated chondrosarcoma based on intrafemoralinoculation of HT1080 WT or KO cells (high and low MT1-MMP expression,respectively) was used to evaluate target binding and biodistribution.Fluorescence and Cerenkov luminescence images of [89Zr]Zr-DFO-anti-MT1-MMP-IRDye800CWshowed preferential uptake in HT1080 WT tumors.