“…Several studies have associated the S100A4 protein with increased metastatic capacity of cancer cells (Davies et al, 1993;Maelandsmo et al, 1996;Levett et al, 2002), and more recently a correlation between the level of S100A4 protein and prognostic outcome has been reported in various types of cancer (lung gall bladder, oesophageal, gastric, breast and colon) Rudland et al, 2000;Yonemura et al, 2000;Ninomiya et al, 2001;Gongoll et al, 2002;Nakamura et al, 2002). Several laboratories have studied the involvement of S100A4 in invasion and metastasis, but little is still understood of the mechanism by which it exerts the metastasis-promoting effects.…”