PTN (F7T3F) Rabbit Monoclonal Antibody #54934

Pleiotrophin (PTN) is a heparin-binding, developmentally regulated cytokine that is independently identified by several groups; it is also known as heparin-binding brain mitogen (HBBM), heparin-binding growth factor-8 (HBGF-8), heparin-binding neurotrophic factor (HBNF), heparin-affinity regulatory peptide (HARP), heparin-binding growth-associated molecule (HB-GAM), and osteoblast-specific factor 1 (OSF-1) (1-6). PTN is highly upregulated during embryonic development and early cell differentiation. In adulthood, PTN expression decreases in most tissues except for the bone and the nervous system. It interacts with numerous cell surface proteoglycan and non-proteoglycan receptors, including protein tyrosine phosphatase receptor type Z (PTPRZ), syndecans, nucleolin, neuropilin-1, ALK, and integrin αVβ3 and αMβ2 (reviewed in 7-9). PTN has been associated with biological events that involve cellular proliferation, differentiation, and inflammation, including tissue regeneration, bone repair, hypoxia, tumor growth, and angiogenesis.