VS-5584，25MG，SML3959-25MG，Sigma

Biochem/physiol Actions

Orally active, potent and highly selective mTOR and class I phosphoinositide 3-kinases (PI 3-kinases; PI3K) inhibitor with anti-cancer efficacy in vitro and in vivo.


VS-5584 (SB2343) is an orally active, potent and highly selective mTOR (IC50 = 37 nM) and class I phosphoinositide 3-kinases (PI 3-kinases; PI3K IC50 = 16 nM/α, 68 nM/β, 25 nM/γ, 42 nM/δ; little activity toward 400 other lipid and protein kinases) inhibitor with broad-spectrum anti-proliferation activity in cancer cultures (IC50 post 48h treatment from 48 nM to 1.75 μM among 50 cancer lines) by inhibiting PI3K and mTOR downstream substrates phosphorylation. VS-5584 displays tumor growth inhibition efficacy in various rapalog-sensitive and -resistant human xenograft models in mice in vivo (PC3 TGI = 79% and 113%, respectively, post 28-day 11 mg/kg or 25 mg/kg daily p.o. treatment).