Saracatinib (AZD0530)

2 years -80 in solvent

Orally administered daily

PC3, DU145, CWR22Rv1, LNCaP, LAPC-4, PZ-HPV7 and RWPE-1 cells

62.5 nM - 16 mM

Dissolved in 0.5% hydroxypropyl methylcellulose, 0.1% Tween 80

Saracatinib also potently inhibits other Src tyrosine kinase family members including c-Yes, Fyn, Lyn, Blk, Fgr, and Lck with IC50 from 4-10 nM. Saracatinib sensitively inhibits Src Y530F NIH 3T3 with IC50 of 80 nM. Saracatinib signi cantly impairs the invasion of HT1080 cells through a 3-dimensional collagen matrix and completely inhibits EGF-induced cell scattering in NBT-II bladder cancer cells. [1] Saracatinib potent inhibits Src activation in DU145 and PC3 cells, which through inhibition of Y419 phosphorylation. Saracatinib inhibits the growth of prostate cancer including PC3, DU145, CWR22Rv1 and LNCaP, while Saracatinib shows low activity in LAPC-4, PZ-HPV7 and RWPE-1 cells. Saracatinib induces cell cycle arrest at G1/S but not caspase 3 cleavages. Saracatinib also significantly inhibits DU145 and PC3 migration in the Boyden chamber. [2] Saracatinib gives a potent and sustained blockage of AKT and enhances the sensitivity to irradiation in A549 and Calu-6 cells. [3] Saracatinib inhibits osteoclast in activity, resorption and formation. Saracatinib also reversibly prevents osteoclast precursor migration. [4]

1, 3 and 5 days

Cells are seeded at a density of 2x103 in 96-well plates and incubated overnight. Then Saracatinib (62.5 nM–16 mM) is added to the cells. After 1, 3 and 5 days, culture medium is removed followed by addition of 0.2 mL DMSO per well and continuous shaking of plates at 200 rotations per minute for 15min. Then IC50 is measured by MTT method.

Saracatinib (AZD0530) is a potent Src inhibitor with IC50 of 2.7 nM in cell-free assays, and potent to c-Yes, Fyn, Lyn, Blk, Fgr and Lck; less active for Abl and EGFR (L858R and L861Q). Saracatinib induces autophagy. Phase 2/3.

Saracatinib is the first Src inhibitor to show inhibition of the Src pathway in human tumor tissue.