955365-80-7 2-烯丙基-1-(6-(2-羟基丙-2-基)吡啶-2-基)-6-(4-(4-甲基哌嗪-1-基)苯基氨基)-1H-吡唑并[3,4-D]嘧啶-3(2H)-酮

MK-1775,MK1775
分子式： C27H32N8O2
分子量：500.60
产品描述
MK-1775 是有效的，选择性Wee1YZ剂，IC50为5.2 nM;YZG2期DNA损伤检测。
靶点
Wee1 IC505.2 nM
体外研究
MK-1775 inhibits Wee1 kinase in an ATP-competitive manner. Compared to Wee1, MK-1775 displays 2- to 3-fold less potency against Yes with IC50 of 14 nM, 10-fold less potency against seven other kinases with >80% inhibition at 1 μM, and >100-fold selectivity over human Myt 1, another kinase that inhibits cyclin-dependent kinase 1 (CDC2) by phosphorylation at an alternative site (Thr14). By abrogating the DNA damage checkpoint via blockade of Wee1 activity in WiDr cells bearing mutated p53, MK-1775 treatment inhibits the basal phosphorylation of CDC2 at Tyr15 (CDC2Y15) with EC50 of 49 nM, and suppresses gemcitabine-, carboplatin- or cisplatin-induced phosphorylation of CDC2 and cell cycle arrest in a dose-dependent manner, with EC50 of 82 nM and 81 nM, 180 nM and 163 nM, as well as 159 nM and 160 nM, respectively. MK-1775 treatment alone at 30-100 nM has no significant antiproliferative effect in WiDr and H1299 cells, whereas MK-1775 at 300 nM, sufficient to inhibit Wee1 by >80%, displays moderate but significant antiproliferative effects by 34.1% in WiDr cells and 28.4% in H1299 cells.
体内研究
MK-1775 treatment alone at ~20 mg/kg displays minimal antitumor effects against WiDr xenografts in rats with T/C of 69% at day 3. Antitumor efficacy by MK-1775 alone in the nude rat HeLa-luc and TOV21G-shp53 xenograft models models is also moderate.溶解性DMSO 80 mg/mL，水 0.0001 mg/mL，乙醇 <1 mg/mL
稳定性
2年 -20°C粉状，6月-80°C溶于DMSO
特征
First reported Wee1 inhibitor