奥拉单抗 (Lartruvo)

概览

Olaratumab is a platelet-derived growth factor receptor alpha blocking antibody used with doxorubicin to treat patients with certain types of soft tissue sarcoma (STS).

作用机制

Olaratumab blocks ligand-induced tumor cell proliferation, and inhibits receptor autophosphorylation and ligand-induced phosphorylation of the downstream signaling molecules protein kinase B (Akt) and mitogen-activated protein kinase . PDGFR signalling is a type of tyrosine kinase-mediated pathway that normally regulates cell growth, chemotaxis, and mesenchymal stem cell differentiation. It also promotes internalization of PDGFR thus alters the surface levels of PDGFR.

适应症

用于治疗软组织肉瘤。

• Soft Tissue Sarcoma