ASK1-IN-3 is a highly potent and selective inhibitor of ASK1 kinase, demonstrating an IC 50 of 33.8 nM. This compound also exhibits inhibitory effects on various cell cycle regulating kinases. ASK1-IN-3 showcases remarkable induction of apoptosis in HepG2 cancer cells and displays potent activity in arresting the cell cycle [1].
Selonsertib, also known as GS-4997, is an orally bioavailable inhibitor of apoptosis signal-regulating kinase 1 (ASK1), with potential anti-inflammatory, antineoplastic and anti-fibrotic activities. GS-4997 targets and binds to the catalytic kinase domain of ASK1 in an ATP-competitive manner, thereby preventing its phosphorylation and activation. GS-4997 prevents the production of inflammatory cytokines, down-regulates the expression of genes involved in fibrosis, suppresses excessive apoptosis and inhibits cellular proliferation.