“…Recently, another FGF family member, palifermin that like velafermin induces proliferation and differentiation of a wide variety of epithelial cells and has cytoprotective properties for mucosal tissues, but unlike velafermin does not induce mesenchymal cell proliferation has been investigated in a mouse fractionated radiation mucositis model (Dorr et al 2001, 2002a, 2002b, 2002c, 2005a, 2005b, 2005c, Dorr 2002. In these rodent studies, Dorr and coworkers irradiated the center of the lower tongue, monitored mucosal ulceration, and found that when fractionated radiation (3 Gy/day) was delivered in two cycles on days 0, 1, 2, 3, 4 and days 7, 8, 9, 10, 11, palifermin was efficacious when administered on days 4 and 11 (Dorr et al 2005a).…”