NCIt synonyms : SPP-1; Uropontin; Nephropontin; Bone Sialoprotein 1; Urinary Stone Protein; Secreted Phosphoprotein 1;
NCIt definition : Osteopontin (314 aa, 35 kDa) is encoded by the human SPP1 gene. This protein is involved
in the regulation of both tissue mineralization and cell-cell signaling.;
NCIt note : Osteopontin exists in 4 isoforms, and is secreted by secretory phase ductal epithelium.
Implicated in the pathogenesis of several cancers.;