Protein tyrosine kinase (PTK) inhibitors are potential antiproliferative agents for diseases caused by the hyperactivity of PTKs. Tyrphostins are a class of antiproliferative compounds that act as PTK blockers. PTK inhibitors which preferentially inhibit the epidermal growth factor (EGF) receptor kinase block EGF-dependent cell proliferation. AG-213 is an inhibitor of epidermal growth factor (EGF) receptor kinase with an IC50 value of 2.4 μM in the human epidermoid carcinoma cell line A431.
Epidermal growth factor receptor (EGFR) and platelet-derived growth factor receptor (PDGFR) kinase inhibitor (IC 50 values are 2.4 and 3 μ M respectively). Stimulates microtubule polymerization and promotes neurite outgrowth > 17-fold over basal conditions in vitro . Also weakly inhibits protein kinase C (IC 50 = 60 μ M).
[1] romer l h, mclean n, turner c e, et al. tyrosine kinase activity, cytoskeletal organization, and motility in human vascular endothelial cells[j]. molecular biology of the cell, 1994, 5(3): 349-361.
[2] gazit a, yaish p, gilon c, et al. tyrphostins i: synthesis and biological activity of protein tyrosine kinase inhibitors[j]. journal of medicinal chemistry, 1989, 32(10): 2344-2352.
[3] levitzki a, gazit a. tyrosine kinase inhibition: an approach to drug development[j]. science, 1995, 267(5205): 1782.
[4] herbst r s. review of epidermal growth factor receptor biology[j]. international journal of radiation oncology biology physics, 2004, 59(2): s21-s26.
