Furthermore, we previously demonstrated that SCGB3A2 (also called UGRP1 (uteroglobin-related protein 1)), another member belonging to the same SCGB3A gene subfamily as SCGB3A1, is a ligand for Syndecan-1 (SDC1) in cancer cells [46, 47]. Here, SCGB3A1 is linked to cancer.