SMO-IN-2 is a potent smoothened (SMO) inhibitor of hedgehog (Hh) signaling.SMO-IN-2 shows antiproliferative activity and anticancer activity against human medulloblastoma cell lines.SMO-IN-2 can be used in the study of cancer.

ALLO-2 is a Inhibitor of Drug-Resistant Smo Mutant.It inhibits Smo agonist Hh-Ag1.5-induced luciferase expression in TM3-Gli-Luc cells with IC50 of 6 nM.

MS-0022 is a SMO antagonist. MS-0022 showed effective Hh signaling pathway inhibition at the level of SMO in the low nM range, and Hh pathway inhibition downstream of Suppressor of fused (SUFU) in the low µM range. MS-0022 reduced growth in the tumor cell lines PANC-1, SUIT-2, PC-3 and FEMX in vitro. MS-0022 is a treatment led to a transient delay of tumor growth that correlated with a reduction of stromal Gli1 levels in SUIT-2 xenografts in vivo.

Dynarrestin is an inhibitor of cytoplasmic dyneins 1 and 2. Dynarrestin suppresses hedgehog (Hh)-dependent proliferation of neuronal precursors and tumor cells. It inhibits dynein 1-driven microtubule gliding in vitro plus a range of dynein 1- and 2-depen

HSP70-IN-3, a potent inhibitor of HSP70 with IC50 values of 1.1 μM in ASZ001 cells and 1.9 μM in C3H10T1/2 cells, exhibits anti-Hedgehog (Hh) signaling and anti-proliferative activities. Furthermore, it reduces the expression of the oncogenic transcription factor GLI1 [1].