GSK2656157 is a selective and ATP-competitive inhibitor of protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) with an IC50 of 0.9 nM.
IC50&Target
EIF2AK3 (PERK)
0.9 nM (IC50)
EIF2AK1 (HRI)
460 nM (IC50)
BRK
905 nM (IC50)
EIF2AK2 (PKR)
905 nM (IC50)
MEKK3
954 nM (IC50)
Aurora B
1259 nM (IC50)
KHS
1764 nM (IC50)
LCK
2344 nM (IC50)
MLK2
2796 nM (IC50)
MEKK3
2847 nM (IC50)
ALK5
3020 nM (IC50)
MLCK2
3039 nM (IC50)
EIF2AK4(GCN2)
3162 nM (IC50)
c-MER
3431 nM (IC50)
PI3Kγ
3802 nM (IC50)
WNK3
5951 nM (IC50)
LRRK2
6918 nM (IC50)
ROCK1
7244 nM (IC50)
MSK1
8985 nM (IC50)
NEK1
9807 nM (IC50)
AXL
9808 nM (IC50)
JAK2
24547 nM (IC50)
体外研究
GSK2656157 results in inhibition of PERK activation as well as decreases in the downstream substrates, phospho-eIF2α, ATF4, and CHOP with an IC50 in the range of 10-30 nM in the BxPC3 pancreatic tumor cell line. Cells that are exposed to 1 μM GSK2656157 before UPR induction are able to block this effect on de novo protein synthesis. GSK2656157 causes the activation of another eIF2α kinase to compensate for the loss of PERK activity in HT1080 cells. GSK2656157 inhibits the growth of the HT1080 cells. GSK2656157 inhibits LPS-induced IL-1β production, LPS-induced Caspase 1 activation and LPS-induced eIF-2α phosphorylation, but does not inhibit LPS-induced TNF-α production.
体内研究
GSK2656157 (1.5-150 mg/kg, p.o.) results in dose-dependent inhibition of phospho-PERK Thr980, with more than 80% inhibition at 50 and 150 mg/kg. GSK2656157 (50-150 mg/kg, p.o.) results in dose-dependent inhibition of tumor growth in human tumor xenograft models.
分子式
C23H21FN6O
分子量
416.45
CAS号
1337532-29-2
运输条件
Room temperature in continental US; may vary elsewhere.