PRL3-CNNM4 PPI IN 1 (Compound C28d52) is an inhibitor of the PRL3-CNNM4 interaction and also inhibits PRL-mediated suppression of CNNM. PRL3-CNNM4 PPI IN 1 is capable of penetrating epithelial cell layers, exhibits metabolic stability, possesses favorable pharmacokinetic and pharmacodynamic properties, and holds potential for drug development based on this compound[1].