GLI antagonist 1

HPI 1 是一种刺猬 (Hh) 信号抑制剂。在 Shh-LIGHT2 细胞中抑制 Sonic Hedgehog (Shh)-、SAG- 和 Gli 诱导的 Hh 通路激活（Shh-、SAG-、Gli2- 和 Gli1 诱导的激活的 IC50 值为 1.5、1.5、4 和 6 μM） .

HPI-1 (hydrate) is a Hedgehog (Hh) pathway inhibitor that suppresses signaling through Sonic Hh (IC50= 1.5 μM) without significantly affecting Wnt signaling (IC50≥ 30 μM).1HPI-1 suppresses Hh activation induced by loss of Suppressor of Fused or by Gli overexpression, suggesting action at posttranslational modification of Gli protein or at the interaction of Gli with a co-factor.1HPI-1 (hydrate) also inhibits signaling through the oncogenic Smoothened (Smo) mutant SmoM2 in neuron precursors, preventing cell proliferation.1 1.Hyman, J.M., Firestone, A.J., Heine, V.M., et al.Small-molecule inhibitors reveal multiple strategies for Hedgehog pathway blockadeProceedings of the National Academy of Sciences of the United States of America106(33)14132-14137(2009)

HPi1 是一种有口服活性的，针对幽门螺杆菌的选择性抗菌剂，IC50为 0.24 μM，MIC 为 0.08-0.16 μg/mL。