Tyrphostin A51 is a potent protein tyrosine kinase (PTK) inhibitor. Tyrphostin A51 inhibits the volume-dependent release of [3H]taurine in a dose-dependent manner. Tyrphostin A51 markedly reduces cellular tyrosyl phosphorylation level. Tyrphostin A51 inhibits both basal and EGF-induced human bone cell proliferation.
[1]. Alexander A. et al. [3H]taurine andd-[3H]aspartate release from astrocyte cultures are differently regulated by tyrosine kinases. Physiology-cell physiology. 1999, 1226-1230.
[2]. Yoon HK, et al. Differential effects of two protein tyrosine kinase inhibitors, tyrphostin and genistein, on human bone cell proliferation as compared with differentiation. Calcif Tissue Int. 1998 Sep;63(3):243-9.