GSK2656157 (1337532-29-2) is a potent (IC50 = 0.9 nM) and selective (over 300 kinases) inhibitor of protein kinase RNA-like endoplasmic reticulum kinase (PERK).1,2? Inhibited growth of multiple human tumor xenografts in mice. GSK2656157 has also been found to potently inhibit RIPK1 (IC50 = 69 nM) and TNF-mediated RIPK1 kinase-dependent cell death in mouse embryonic fibroblasts.3 It prevented the loss of dendritic spines and rescued memory deficits after traumatic brain injury.4? GSK2656157 also enhanced glucose-stimulated insulin secretion in a mouse model of type 2 diabetes mellitus.5
