BGT226

BGT226 (NVP-BGT226) is a PI3K (with IC₅₀s of 4 nM, 63 nM and 38 nM for PI3Kα, PI3Kβ and PI3Kγ)/mTOR dual inhibitor which displays potent growth-inhibitory activity against human head and neck cancer cells^[1][2]. IC50 & Target: IC50: 4 nM (PI3Kα), 63 nM (PI3Kβ), 38 nM(PI3Kγ)^[1]. In Vitro: BGT226 shows significant growth inhibition or signal blockage profiles compared with LY294002 and Rapamycin. BGT226 (10-10000 nM) inhibits FaDu and OECM1 cells growth with IC₅₀s of 23.1±7.4 and 12.5±5.1 nM, respectively^[2].
The expression levels of p-mTOR Ser2481 are decreased in BGT226-treated cell lines (200 nM; 24 hours) and both p-AKT Ser473 and p-mTOR Ser2448 are also decreased in BGT226-treated cell lines^[2]. In Vivo: BGT226 (2.5 and 5 mg/kg; oral administration for 21 days in male athymic mice) causes 34.7% and 76.1% reduction of the tumor growth on day 21 compared with control^[2].