IGF-1R (胰岛素样生长因子受体)

IGF-1R (Insulin-like growth factor 1 receptor), a receptor tyrosine kinase, is activated upon binding to the ligands IGF-1 or IGF-2 leading to cell growth, survival and migration of both normal and cancerous cells.

IGF-1R can initiate the activation of the PI3K/AKT/mTOR signaling and Ras/Raf/MEK/MAPK pathways resulting in the activation of multiple transcription factors such as ELK-1, CREB and AP-1 to modulate cell proliferation, survival, differentiation, motility, invasion and angiogenesis. IGF-1R overexpression or increased IGF-1R kinase activity is associated with a broad range of human cancers and therefore the IGF-1R is widely considered as a very promising target for cancer treatment.