CD276 and neoplasm: The uptake of [99mTc]Tc-ZAC12*-ZAC12*-GGGC in B7-H3-positive SKOV-3 xenografts was 12-fold higher than in B7-H3-negative Ramos xenografts (Fig. 8A), which clearly demonstrated that the tumour uptake in vivo was B7-H3-mediated.