_{Purmorphamine (Shh Signaling Antagonist VI)，又称嘌吗啡胺，是一种嘌呤衍生物，是第一个针对Smoothened蛋白开发的小分子激动剂，通过直接结合激活Smoothened (IC50: 1.5 μM)，活化Hedgehog通路。此外，该化合物在多能间充质祖细胞中表现出成骨诱导活性。}

参考文献

1. Sinha S, Chen J K. Purmorphamine activates the Hedgehog pathway by targeting Smoothened. Nature chemical biology, 2006;2(1): 29.
2. Wu X, et al. A small molecule with osteogenesis-inducing activity in multipotent mesenchymal progenitor cells. Journal of the American Chemical Society, 2002;124(49): 14520-14521.
3. Faghihi F, et al. The effect of purmorphamine and sirolimus on osteogenic differentiation of human bone marrow-derived mesenchymal stem cells. Biomedicine&Pharmacotherapy. 2013;67(1): 31-38.
4. Gu D, et al. A role for transcription factor STAT3 signaling in oncogene smoothened-driven carcinogenesis. J Biol Chem. 2012;287(45):38356-66.

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