SKL2001 is an agonist of the Wnt/β-catenin pathway, and also upregulates the expression of Axin2, a downstream target of the Wnt/β-catenin pathway, but shows no effect on NF-κB, p53 reporter activity and GSK-3β activity. SKL2001 causes osteoblast differentiation (20 and 40 μM) and suppresses preadipocyte differentiation (5, 10, and 30 μM) via the activation of the Wnt/β-catenin pathway. SKL2001 (5, 10, and 30 μM) stabilizes intracellular β-catenin in 3T3-L1 cells. SKL2001 (40 μM) significantly inhibits the proliferation of HCT116 spheroids independently of cytotoxicity and the inhibition is reversible; SKL2001 cuases cell cycle arrest in HCT116 spheroids. SKL2001 (40 μM) enhances round-shape spheroid formation and E-cadherin expression.
