Anti-Osteopontin antibody produced in rabbit has been used in immunohistochemistry and immunoblotting.
Osteopontin (OPN), also termed as bone sialoprotein 1, urinary stone protein, early t lymphocyte activation protein 1 (ETA1), and uropontin, is a phosphorylated acidic arginine-glycine-aspartate (RGD)-containing glycoprotein that binds integrin and CD44 receptors. OPN is the most abundant product of osteoblast and kidney cells, it is also expressed in lung, liver, bladder, pancreas, breast, vascular smooth muscle cells and macrophages.
Osteopenia (OPN), functions like chemokine and cytokine. It is implicated in a number of physiologic and pathologic events including angiogenesis, apoptosis, inflammation, wound healing and tumor metastasis. Osteopontin expression is upregulated in cancer of breast, prostate, ovarian, lung, brain tumor and hepatocellular carcinoma.