Figure 4. GS87 effectively modulates GSK3-dependent proteins.
(A) GS87-induced differentiation is independent of β-catenin. OCI cells with stable knockdown of β-catenin showed similar differentiation as compared to cells transfected with empty vector after treatment with GS87 for 3 days as measured by NBT reduction. (B-C) GS87 modulates GSK3 target proteins important in cell proliferation and differentiation more effectively than Li and SB. HL-60 cells were treated as indicated for 2 and 4 days (B) or 4 days (C) and assessed by western blot for key AML growth and differentiation proteins that can be modulated by GSK3.