ANTXR1 and neoplasm: Finally, L2, a therapeutic anti-TEM8 monoclonal antibody, can be used as a medium in PET imaging studies when coupled with radioactive zirconium (89Zr) in mouse tumor models of colorectal adenocarcinoma, gastric carcinoma, breast ductal carcinoma, epidermoid carcinoma, and glioblastoma [41].