cyclopamine

Cyclopamine (11-Deoxojervine) 是Hedgehog 通路的拮抗剂，细胞实验中IC50=46 nM。它还是选择性Smo 抑制剂。

Cyclopamine-KAAD is a potent inhibitor of hedgehog signaling with an IC50 value of 20 nM in a Shh-LIGHT2 assay. It blocks binding of BODIPY-cyclopamine to cells expressing Smoothened (Smo) in a dose-dependent manner. Cyclopamine-KAAD is cell-permeable and binds to SmoA1 to promote its exit from the endoplasmic reticulum. It inhibits the invasion and migration (45.9 and 43.3% inhibition, respectively) of Bel-7402 hepatocarcinoma cells and decreases the expression of nuclear glioma-associated oncogene 1 (Gli1) and cytosolic MMP-9, pERK1, and pERK2 proteins in a dose-dependent manner. Cyclopamine-KAAD also increases TRAIL-mediated cell death in NCH82 and NCH89 human glioblastoma cultures and upregulates expression of the death receptors DR4 and DR5 in LN229 and U251 glioma cells.

MRT 10 是一种七跨膜平滑受体 (Smo) 拮抗剂，通过多种 Hedgehog (Hh) 测定，其IC50=0.65 μM。它与Smo 受体结合的位点是 Bodipycyclopamine。它可用于研究癌症。

MRT-81 是一种人和啮齿动物 smoothened 受体的有效拮抗剂，能够抑制 hedgehog 的活性，在 Shh-light2 细胞中的IC50值为 41 nM。它可用于研究癌症。

Purmorphamine (Shh Signaling Antagonist VI) 是平滑受体激动剂，EC50为 1 μM。它阻止 BODIPY-cyclopamine 与 Smo 结合。它也是成骨细胞分化的诱导剂。

BMS-833923 (XL-139) 是一种口服生物可利用的 Smoothened 拮抗剂，以剂量依赖性方式抑制 BODIPY cyclopamine 与 SMO 的结合，IC50为21 nM。

MRT-83 (hydrochloride) is a potent antagonist of the Smoothened (Smo) receptor, effectively inhibiting the Hedgehog (Hh) signaling pathway and BODIPY-cyclopamine binding to human Smo. With its potential applications in the study of cancer disease, MRT-83 (hydrochloride) demonstrates promising prospects for research purposes.

SAG dihydrochloride 是一种强效的 Smoothened（Smo）受体激动剂（EC 50 =3 nM；K d =59 nM）。SAG dihydrochloride 可激活刺猬信号通路并抵消环丙胺对 Smo 的抑制。

Tomatidine hydrochloride (Tomatidine HCl) 是一种甾体生物碱，可防止肌肉萎缩并促进肌肉生长。它通过阻断 NF-κB 和JNK 信号发挥抗炎作用，可激活哺乳动物细胞或秀丽隐杆线虫中的自噬。

Patidegip, laos known as Saridegib and IPI-926, is an orally bioavailable, cyclopamine-derived (for structure comparison see Fig 1) inhibitor of the Hedgehog (Hh) pathway with potential antineoplastic activity. Specifically, Hedgehog pathway inhibitor IPI-926 binds to and inhibits the cell membrane-spanning G-protein coupled receptor SMO, which may result in the suppression of Hh pathway signaling and a decrease in tumor cell proliferation and survival. SMO is activated upon binding of Hh ligand to the cell surface receptor Patched (PTCH); inappropriate activation of Hh signaling and uncontrolled cellular proliferation may be associated with SMO mutations.