Zhu et al demonstrated that recombinant periostin promoted adhesion and migration of epithelial ovarian tumor cells, and that this function was inhibited by the αvβ3 or αvβ5 antibody, indicating that periostin is important in the αvβ3 or αvβ5 integrin-dependent adhesion and migration of epithelial cells (5). Here, POSTN is linked to ovarian epithelial tumor.