Researchers led by Katsunori Tanaka and Kenward Vong at the RIKEN Cluster for Pioneering Research (CPR) in Japan have demonstrated that tumor growth can be reduced by therapy that tags cancer cells with different therapeutic molecules. In one case, the group was able to prevent tumors from forming in mice by targeting cancer cells with a compound that makes it difficult for the cells to clump together and form tumors. For tumors that already existed, they targeted cancer cells with toxic compounds that destroyed them. This study was published in Science Advances.